LinkGet that and zap the viruses with it (download > install > update and scan). They went out of their way to make this AV very easy to use so it should not be too hard.
The TOS is not about "What you think". You agree to not do that in exchange for using their services.
Then your homework will be simple.
[Edited by Neo7, 2/24/2010 7:47:00 AM]
[Edited by Neo7, 2/23/2010 8:48:19 PM]