I've had problems with the Sync Configuration program crashing under WinXP SP2 as well. I've taken to making my adjustments in one section at a time (calender, to-do, etc.), then exiting and restarting the manager.
Also, IIRC I found that when I specified my remote Outlook folder, I had to exit immediately or it would crash when I tried to do anything else. I could then re-open the Configuration program and make my settings changes.