HELP ME PLEASE! Packed.generic.200 virus

Hi there, I have gotten this virus when I logged onto Myspace. I am using Windows XP. Spyware Doctor & Ad-Aware do not pick up the virus. AVG picks up the virus but doesn't remove them. I have downloaded both Malware (which installs but doesn't run) and Superantispyware (which does not allow me to install). Norton continues to pick up the virus but doesn't remove it. Up until now computer / internet has been working ok considering, but now internet is starting to redirect me to different pages. Norton picks up 22 files infected, AVG picks up 16 files infected. AVG picks up that the virus is also in svchost.exe in Windows System32 folder.

Can someone help me? (in easy language please coz I'm not very technical .. :) Hope to hear from someone .. anyone!