That'd be for the installer problem... For the my documents opening that'd *hopefully* clear up when the installer stops trying to run at boot or, well, the only other links that I have handy for that are these (sometimes the first and sometimes the second):
Fix "My Documents" opens on boot:
See line 255 / Right hand side
Troubleshooting Windows XP, Tweaks and Fixes for Windows XP:
(Thanks to Kelly MS-MVP)
System32 Folder Opens When Logging on to Windows XP
Usually the opening of the folder automatically will get squared away after the installer cleanup utility's been used to clean up the faulty installation application. Sometimes not though, for the record which application's still trying to install itself?