How delete "Search for" spyware

i everyone, i have a huge preoblem, sometime ago my computer was infected with a spyware called: "search for"
The spyware evrerytime chances my hompege, to the page thet in this picture:
hxxp: //www.complicesil.com/for.JPG

I tried to delete the spyware, by Ad-aware and Spybot, both of programs are updated.
They succes to delete the spy program but the program continue to appear after few minutes.
I used cwshredder but it also doesn't help.

What can i do to delete the spyware?

I have Inernet Explorer 6, windows XP home edition.

Thanks a lot!!
Tomas.

<-----HERE IS THE PICTURE----->

- made linked image into an attachment - snap

 

Hi McToM,

I have removed your post with the Hijackthis log in it. I am afraid we no longer allow the posting of unsolicited HijackThis logs, or this type of system cleaning service as per our Posting Policy stated in this Announcement.

However, you will find a link in the Announcement Post to several other sites that still do provide HijackThis log analysis service. Please be sure and follow the individual forum posting policies before you post your hijackthis log for review.

Regards,

snap