Duke:
To search for old topics, you have to find the little combo box at the bottom of the search screen and set it for something greater than one week (default).
The combo box looks something like this:
Date Range
Maximum date range is 1 year.
Newer than Day(s) Week(s) Month(s) Year(s)
Older than Day(s) Week(s) Month(s) Year(s)
Just set it as "older than one year" to see the old Synchronization threads.
Basically, Bert concluded that the Synchronizer works fine as long as you only add data and don't
delete anything.
Bert instead recommends using a program called SyncToy, which is free from Microsoft and performs synchronization flawlessly. I couldn't answer a basic setup question when I tried to install SyncToy, and so I am still using the Amazing Synchonizer. (sorry, Bert!)