So far I have only run into one problem:
When you open ThinkSync, click New Job, then click on the 'Folders' tab, it simply crashes.
Two error messages are displayed with the following information (Windows XP Pro - SP2):
AppName: thinksync.exe AppVer: 1.0.0.1 ModName: thinksync.exe
ModVer: 1.0.0.1 Offset: 0001b8ce
AppName: thinksync.exe AppVer: 1.0.0.1 ModName: ntdll.dll
ModVer: 5.1.2600.2180 Offset: 00043345