No problem. Thanks!
The Sunbelt blog has screenshots of scam sites where you can pick up such infections. You might want to have a look at these and avoid any such sites in the future.
http://sunbeltblog.blogspot.com/2006/12/some-more-new-scam-sites-to-add-to.html
http://sunbeltblog.blogspot.com/2006/12/new-scam-sites.html
And a whole lot more here:
http://forum.avast.com/index.php?topic=25152.msg205892#msg205892
You should also check that Sun Java is up to date if you have it on your computer.
http://www.java.com/en/download/index.jsp
Check in Control Panel>Add/Remove and uninstall any older versions as these are a security vulnerability.