Day24

sorry for the nondescript title, but I don't know where to begin.

I did an ad aware scan, it found 30 infections, all minor, some cookies 1 MRU. I removed them. Then I did a windows disk cleanup, didn't really look at what it found, just clicked remove.... but when it took too long, I clicked cancel. Halfway through the disk cleanup, the favourites in the left pane of my explorer disappeared, and outlook suddenly said it couldn't find outlook.pst
this is where the trouble started.

I restarted, thinking it was a quirk. But no. Suddenly, no personal details were present. My computer could find nothing in my personal profile. No outlook stuff, msn messenger had no login details, gmail notifier had no login details, I had no connection to the internet (but I DID have a connection to the rest of the network) and I could not start firefox.

So I did a system restore.

This has restored my internet connection, but none of the other stuff has been restored. I do not know what to do here..... does anyone have any hints or tips, other than reinstalling vista? I have an OEM version, so activating will probably need to be through MS itself...which will be a pain. Not to mention that it will take hours, and will mean I need to reinstall everything. As well as the fact that it's already 11 pm here and I have work in the morning.

Please, if anyone can help me.....