Dialer wont go away

I picked up a spyware/adware program on my machine at some point. The program installs itself in the folder WebSiteViewer in programs and places a icon on the desktop and in the start menu of a womans face with the label “sex”. The files are labeled 127021 with various extensions including .dlr. Spybot and Ad-Aware have both detected it and listed it as a TIBS by Smooth Content Ltd. They both also say they have removed or fixed the problem and as soon as I reboot everything is back. I think this little program has made a $50 call to the UK. This and the annoyence of it makes me want it gone for good.
I am running win2k pro with sp4 installed, ie6 full updates.
Any help making this thing go away would be appreciated.
Thanks