There are two different installs. One for Windows 7 / VISTA and a the second for everyone else (XP and 2000). What is the difference? XP will put all your files in a normal place.
\program files\ISS MMS Synchro VISTA and Windows 7 will put them in a “safe” place.
Don’t worry, if you need to access the files, there is a button on the Check List page to open the directory..