I can not find anything that says it is supported. It would have to be a new version to pick up the new locations of files and the new security of Windows 7. In addition you can't take drivers (printers specificly) from XP to Win7 so what can can and can't capture is very limited using the old versions.
I tried captureing basic stuff like the user's desktop files (minus LNK files), the user's My Documents folder, and the user internet favorites. The data was transplanted.
NOTE: The link poste by Refeeq is about Symantec Endpoint Protection not PCT.