Nightmare importing Users into Workgroup Manager

Thanks in advance to anyone able to help me.

I am having trouble importing Users from a CSV file into Workgroup Manager. I am at my wits end. The file I'm importing is shown in vim in the below screenshot:

Workgroup Manager correctly "sees" each record as illustrated by the below screenshot:

After I click import something strange happens, the progress bar begins importing then simply disappears. Below is the log from the console:

Process: dsimport [1120]

Path: /usr/bin/dsimport

Identifier: dsimport

Version: ??? (???)

Code Type: X86-64 (Native)

Parent Process: Workgroup Manager [1056]

Date/Time: 2011-08-16 11:48:23.348 +0200

OS Version: Mac OS X 10.6.8 (10K549)

Report Version: 6

Sleep/Wake UUID: 4099DE04-1280-4C2A-BD52-77B223436BC4

Exception Type: EXC_ARITHMETIC (SIGFPE)

Exception Codes: EXC_I386_DIV (divide by zero)

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Thread 0 Crashed: Dispatch queue: com.apple.main-thread

0 dsimport 0x0000000100008511 0x100000000 + 34065

1 dsimport 0x00000001000042d0 0x100000000 + 17104

2 dsimport 0x0000000100009801 0x100000000 + 38913

3 dsimport 0x0000000100009d35 0x100000000 + 40245

4 dsimport 0x0000000100001310 0x100000000 + 4880

Thread 1: Dispatch queue: com.apple.libdispatch-manager

0 libSystem.B.dylib 0x00007fff8550cc0a kevent + 10

1 libSystem.B.dylib 0x00007fff8550eadd _dispatch_mgr_invoke + 154

2 libSystem.B.dylib 0x00007fff8550e7b4 _dispatch_queue_invoke + 185

3 libSystem.B.dylib 0x00007fff8550e2de _dispatch_worker_thread2 + 252

4 libSystem.B.dylib 0x00007fff8550dc08 _pthread_wqthread + 353

5 libSystem.B.dylib 0x00007fff8550daa5 start_wqthread + 13

Thread 2:

0 libSystem.B.dylib 0x00007fff8550da2a __workq_kernreturn + 10

1 libSystem.B.dylib 0x00007fff8550de3c _pthread_wqthread + 917

2 libSystem.B.dylib 0x00007fff8550daa5 start_wqthread + 13

Thread 0 crashed with X86 Thread State (64-bit):

rax: 0x000000000000000c rbx: 0x000000010013f730 rcx: 0x00007fff5fbff0a0 rdx: 0x0000000000000000

rdi: 0x0000000000000000 rsi: 0x000000000000000c rbp: 0x00007fff5fbff7d0 rsp: 0x00007fff5fbff230

r8: 0x0000000000000010 r9: 0x0000000000000010 r10: 0x00007fff82961d87 r11: 0x00000001000014dc

r12: 0x00007fff7095d690 r13: 0x000000010011e220 r14: 0x0000000100601bc0 r15: 0x00007fff7001fab0

rip: 0x0000000100008511 rfl: 0x0000000000010246 cr2: 0x0000000102048000

Binary Images:

0x100000000 - 0x10000dff7 +dsimport ??? (???) <28E2CF67-A6A8-5500-6D61-AF0A6FAC872B> /usr/bin/dsimport

0x7fff5fc00000 - 0x7fff5fc3bdef dyld 132.1 (???) <69130DA3-7CB3-54C8-ABC5-423DECDD2AF7> /usr/lib/dyld

0x7fff80003000 - 0x7fff8004ffff libauto.dylib ??? (???) <F7221B46-DC4F-3153-CE61-7F52C8C293CF> /usr/lib/libauto.dylib

0x7fff800c0000 - 0x7fff800d9fff com.apple.CFOpenDirectory 10.6 (10.6) <401557B1-C6D1-7E1A-0D7E-941715C37BFA> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/Frameworks/CFOpen Directory.framework/Versions/A/CFOpenDirectory

0x7fff800f3000 - 0x7fff80101ff7 libkxld.dylib ??? (???) <8145A534-95CC-9F3C-B78B-AC9898F38C6F> /usr/lib/system/libkxld.dylib

0x7fff80b99000 - 0x7fff80bdafff com.apple.SystemConfiguration 1.10.8 (1.10.2) <78D48D27-A9C4-62CA-2803-D0BBED82855A> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfi guration

0x7fff81392000 - 0x7fff81550fff libicucore.A.dylib 40.0.0 (compatibility 1.0.0) <4274FC73-A257-3A56-4293-5968F3428854> /usr/lib/libicucore.A.dylib

0x7fff81f7b000 - 0x7fff8202bfff edu.mit.Kerberos 6.5.11 (6.5.11) <085D80F5-C9DC-E252-C21B-03295E660C91> /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos

0x7fff8243e000 - 0x7fff82450fe7 libsasl2.2.dylib 3.15.0 (compatibility 3.0.0) <76B83C8D-8EFE-4467-0F75-275648AFED97> /usr/lib/libsasl2.2.dylib

0x7fff8295b000 - 0x7fff82bddfe7 com.apple.Foundation 6.6.7 (751.62) <6F2A5BBF-6990-D561-2928-AD61E94036D9> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation

0x7fff82c3b000 - 0x7fff82c4afff com.apple.NetFS 3.2.2 (3.2.2) <7CCBD70E-BF31-A7A7-DB98-230687773145> /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS

0x7fff82c4b000 - 0x7fff82d04fff libsqlite3.dylib 9.6.0 (compatibility 9.0.0) <2C5ED312-E646-9ADE-73A9-6199A2A43150> /usr/lib/libsqlite3.dylib

0x7fff82ea1000 - 0x7fff82eb2ff7 libz.1.dylib 1.2.3 (compatibility 1.0.0) <97019C74-161A-3488-41EC-A6CA8738418C> /usr/lib/libz.1.dylib

0x7fff82eb3000 - 0x7fff82eeefff com.apple.AE 496.5 (496.5) <208DF391-4DE6-81ED-C697-14A2930D1BC6> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.fram ework/Versions/A/AE

0x7fff82eef000 - 0x7fff83006fef libxml2.2.dylib 10.3.0 (compatibility 10.0.0) <1B27AFDD-DF87-2009-170E-C129E1572E8B> /usr/lib/libxml2.2.dylib

0x7fff835b2000 - 0x7fff835b3ff7 com.apple.TrustEvaluationAgent 1.1 (1) <5952A9FA-BC2B-16EF-91A7-43902A5C07B6> /System/Library/PrivateFrameworks/TrustEvaluationAgent.framework/Versions/A/Tru stEvaluationAgent

0x7fff83631000 - 0x7fff83680ff7 com.apple.DirectoryService.PasswordServerFramework 6.1 (6.1) <01B370FB-D524-F660-3826-E85B7F0D85CD> /System/Library/PrivateFrameworks/PasswordServer.framework/Versions/A/PasswordS erver

0x7fff8417b000 - 0x7fff8419bff7 com.apple.DirectoryService.Framework 3.6 (621.11) <AD76C757-6701-BDB5-631E-1CB77D669586> /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryServi ce

0x7fff854f3000 - 0x7fff856b4fef libSystem.B.dylib 125.2.11 (compatibility 1.0.0) <9AB4F1D1-89DC-0E8A-DC8E-A4FE4D69DB69> /usr/lib/libSystem.B.dylib

0x7fff85909000 - 0x7fff85931fff com.apple.DictionaryServices 1.1.2 (1.1.2) <E9269069-93FA-2B71-F9BA-FDDD23C4A65E> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Diction aryServices.framework/Versions/A/DictionaryServices

0x7fff85932000 - 0x7fff85992fe7 com.apple.framework.IOKit 2.0 (???) <4F071EF0-8260-01E9-C641-830E582FA416> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit

0x7fff85993000 - 0x7fff85a10fef libstdc++.6.dylib 7.9.0 (compatibility 7.0.0) <35ECA411-2C08-FD7D-11B1-1B7A04921A5C> /usr/lib/libstdc++.6.dylib

0x7fff85ab0000 - 0x7fff85ab0ff7 com.apple.CoreServices 44 (44) <DC7400FB-851E-7B8A-5BF6-6F50094302FB> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices

0x7fff860e2000 - 0x7fff86259fe7 com.apple.CoreFoundation 6.6.5 (550.43) <31A1C118-AD96-0A11-8BDF-BD55B9940EDC> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation

0x7fff86276000 - 0x7fff86395fe7 libcrypto.0.9.8.dylib 0.9.8 (compatibility 0.9.8) <14115D29-432B-CF02-6B24-A60CC533A09E> /usr/lib/libcrypto.0.9.8.dylib

0x7fff867d7000 - 0x7fff867defff com.apple.OpenDirectory 10.6 (10.6) <4FF6AD25-0916-B21C-9E88-2CC42D90EAC7> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory

0x7fff87456000 - 0x7fff876dfff7 com.apple.security 6.1.2 (55002) <4419AFFC-DAE7-873E-6A7D-5C9A5A4497A6> /System/Library/Frameworks/Security.framework/Versions/A/Security

0x7fff87cd8000 - 0x7fff87d78fff com.apple.LaunchServices 362.3 (362.3) <B90B7C31-FEF8-3C26-BFB3-D8A48BD2C0DA> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchS ervices.framework/Versions/A/LaunchServices

0x7fff87d79000 - 0x7fff87dc3ff7 com.apple.Metadata 10.6.3 (507.15) <2EF19055-D7AE-4D77-E589-7B71B0BC1E59> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Metadata

0x7fff88729000 - 0x7fff887b9fff com.apple.SearchKit 1.3.0 (1.3.0) <4175DC31-1506-228A-08FD-C704AC9DF642> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchK it.framework/Versions/A/SearchKit

0x7fff89010000 - 0x7fff89014ff7 libmathCommon.A.dylib 315.0.0 (compatibility 1.0.0) <95718673-FEEE-B6ED-B127-BCDBDB60D4E5> /usr/lib/system/libmathCommon.A.dylib

0x7fff896cd000 - 0x7fff897a1fe7 com.apple.CFNetwork 454.12.4 (454.12.4) <C83E2BA1-1818-B3E8-5334-860AD21D1C80> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwo rk.framework/Versions/A/CFNetwork

0x7fff89819000 - 0x7fff898d6fff com.apple.CoreServices.OSServices 359.2 (359.2) <BBB8888E-18DE-5D09-3C3A-F4C029EC7886> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServi ces.framework/Versions/A/OSServices

0x7fff89d1f000 - 0x7fff89d25ff7 com.apple.DiskArbitration 2.3 (2.3) <857F6E43-1EF4-7D53-351B-10DE0A8F992A> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration

0x7fff89e1e000 - 0x7fff89e34fef libbsm.0.dylib ??? (???) <42D3023A-A1F7-4121-6417-FCC6B51B3E90> /usr/lib/libbsm.0.dylib

0x7fff89fb1000 - 0x7fff89fd2fff libresolv.9.dylib 41.0.0 (compatibility 1.0.0) <9F322F47-0584-CB7D-5B73-9EBD670851CD> /usr/lib/libresolv.9.dylib

0x7fff89fd3000 - 0x7fff8a307fef com.apple.CoreServices.CarbonCore 861.39 (861.39) <1386A24D-DD15-5903-057E-4A224FAF580B> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonC ore.framework/Versions/A/CarbonCore

0x7fff8a308000 - 0x7fff8a333ff7 libxslt.1.dylib 3.24.0 (compatibility 3.0.0) <8AB4CA9E-435A-33DA-7041-904BA7FA11D5> /usr/lib/libxslt.1.dylib

0x7fff8a334000 - 0x7fff8a3eaff7 libobjc.A.dylib 227.0.0 (compatibility 1.0.0) <03140531-3B2D-1EBA-DA7F-E12CC8F63969> /usr/lib/libobjc.A.dylib

0x7fffffe00000 - 0x7fffffe01fff libSystem.B.dylib ??? (???) <9AB4F1D1-89DC-0E8A-DC8E-A4FE4D69DB69> /usr/lib/libSystem.B.dylib

Any help would be greatly appreciated.

-Daniel