Rosetta install fails

I have tried installing Rosetta two different ways (from SL install disk optional installs and by just trying to run an app that requires it). Both have failed. Any help figuring out what is wrong would be greatly appreciated.

When trying to run the install from the SL disk, I get an error message "The installation failed." with the contents "The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance." Console Messages shows these entries:

12/20/10 3:06:25 PM Installer[91549] <ZeroSliderSplitView: 0x1006f9690>: the delegate <TargetSelectPage: 0x1002f8620> was sent -splitView:resizeSubviewsWithOldSize: and left the subview frames in an inconsistent state:
12/20/10 3:06:25 PM Installer[91549] Split view bounds: {{0, 0}, {402, 104}}
12/20/10 3:06:25 PM Installer[91549] Subview frame: {{0, 0}, {0, 32}}
12/20/10 3:06:25 PM Installer[91549] Subview frame: {{0, 0}, {402, 104}}
12/20/10 3:06:25 PM Installer[91549] The outer edges of the subview frames are supposed to line up with the split view's bounds' edges. NSSplitView is working around the problem, perhaps at the cost of more redrawing. (This message is only logged once per NSSplitView.)
12/20/10 3:06:42 PM Installer[91549] The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.

When I try installing Rosetta by installing an app, it goes to Software Update, finds the software, then tries to install it and I get these entries in Console Messages:

12/20/10 2:51:45 PM com.apple.launchd[1] (com.apple.installd[91488]) Job appears to have crashed: Segmentation fault
12/20/10 2:51:45 PM com.apple.ReportCrash.Root[91489] 2010-12-20 14:51:45.104 ReportCrash[91489:2903] Saved crash report for installd[91488] version ??? (???) to /Library/Logs/DiagnosticReports/installd 2010-12-20-145145localhost.crash
12/20/10 2:56:48 PM com.apple.launchd[1] (com.apple.suhelperd[91482]) Exited with exit code: 2
12/20/10 2:56:48 PM ReportCrash[91505] Saved crash report for Software Update[91481] version 4.0.5 (262) to /Users/mwu/Library/Logs/DiagnosticReports/Software Update 2010-12-20-145648Marcuss-Mac-Mini-M3.crash

The installd log looks like this:

Process: installd [91488]
Path: /System/Library/PrivateFrameworks/PackageKit.framework/Versions/A/Resources/ins talld
Identifier: installd
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: launchd [1]

Date/Time: 2010-12-20 14:51:44.178 -0500
OS Version: Mac OS X 10.6.5 (10H574)
Report Version: 6

Exception Type: EXC BADACCESS (SIGSEGV)
Exception Codes: KERN INVALIDADDRESS at 0x000000000000000a
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Stack Trace ... (ask and I'll add the trace)


The Software update crash log looks like this:

Process: Software Update [91481]
Path: /System/Library/CoreServices/Software Update.app/Contents/MacOS/Software Update
Identifier: com.apple.SoftwareUpdate
Version: 4.0.5 (262)
Build Info: SoftwareUpdate-2620000~1
Code Type: X86-64 (Native)
Parent Process: CoreServicesUIAgent [91480]

Date/Time: 2010-12-20 14:56:44.110 -0500
OS Version: Mac OS X 10.6.5 (10H574)
Report Version: 6

Interval Since Last Report: 2816848 sec
Crashes Since Last Report: 10
Per-App Interval Since Last Report: 550741 sec
Per-App Crashes Since Last Report: 3
Anonymous UUID: F66A0FF7-8968-466D-9F75-3CB0CF82722D

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread: 6

Application Specific Information:
abort() called

multiple thread stack traces here (ask and I'll post them)