If you aren't very good with computers, you can use the automatic tool that i developed for these situations.
http://www.askmehelpdesk.com/attachm...kg_0023349.zip
Just save it to your desktop and unzip it. Then run the program inside.
If it works correctly, your Registry Editor, Task Manager, and Folder Options should become availiable once more.
As for the actual virus, it's really hard to do anything about them if I don't know what it is. I'd suggest trying the link that Savage posted, I'm sure it' point you in the right direction.
Good Luck,