Hi
Let's start this way:
Go to here and do an online scan and delete whatever it finds. Be sure to highlight the drives you want to have searched.
After that could you please go to here
and download AdAwareSE and delete what it finds. Then go here here and download its VX2 cleaner. Run it and delete what it finds.
After that go to here
and download SpyBot and run that and delete what it finds.
Now go to
here and download HiJackThis to its own folder that you create on your C:\ drive.
After it is downloaded open the program and click Scan and Save to log.

Post the log that it generates here.

Steve