I have the same problem - fails immediately with the following error:
The Application PocketMac SyncManager quit unexpectedly.
Here is what is in my logs:
Oct 11 11:26:27: --- last message repeated 56 times ---
Oct 11 11:26:27 craig-hollands-macbook-pro PocketMac SyncManagerOEM[1084]: /Users/craigholland/Library/Application Support/PocketMacSyncManager/SyncLog.log
Oct 11 11:26:27 craig-hollands-macbook-pro PocketMac SyncManagerOEM[1084]: An uncaught exception was raised
Oct 11 11:26:27 craig-hollands-macbook-pro PocketMac SyncManagerOEM[1084]:
* -[NSURL initWithString:relativeToURL:]: nil string parameter
Oct 11 11:26:27 craig-hollands-macbook-pro PocketMac SyncManagerOEM[1084]:
* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '
* -[NSURL initWithString:relativeToURL:]: nil string parameter'
Oct 11 11:26:27 craig-hollands-macbook-pro PocketMac SyncManagerOEM[1084]: Stack: (\n 2444890443,\n 2517716539,\n 2444889899,\n 2444889962,\n 2523715907,\n 2523715522,\n 2523715425,\n 4719867,\n 4721828,\n 4398690,\n 4398955,\n 4438529,\n 12340,\n 13272,\n 25773,\n 2444949845,\n 2452843210,\n 2452802806,\n 2452801112,\n 2452800155,\n 2452799961,\n 2452799112,\n 8994,\n 8777\n)
Oct 11 11:26:27 craig-hollands-macbook-pro [0x0-0x3a03a].com.cisco.VPNClient[886]: Qt: internal kernel/qeventloop_mac.cpp: 262 WH0A
Oct 11 11:26:29: --- last message repeated 4 times ---
Oct 11 11:26:29 craig-hollands-macbook-pro ReportCrash[1076]: Formulating crash report for process PocketMac SyncManagerOEM[1084]
Oct 11 11:26:30 craig-hollands-macbook-pro ReportCrash[1076]: Saved crashreport to /Users/craigholland/Library/Logs/CrashReporter/PocketMac SyncManagerOEM
2008-10-11-112627craig-hollands-macbook-pro.crash using uid: 501 gid: 20, euid: 501 egid: 20
Oct 11 11:26:28 craig-hollands-macbook-pro [0x0-0x3a03a].com.cisco.VPNClient[886]: Qt: internal kernel/qeventloop_mac.cpp: 262 WH0A
Oct 11 11:26:30: --- last message repeated 5 times ---
Oct 11 11:26:30 craig-hollands-macbook-pro com.apple.launchd[308] ([0x0-0x46046].PocketMac SyncManagerOEM[1084]): Exited abnormally: Trace/BPT trap