Fixed image script

Hello,

I'm trying to create a fixed image (not a fixed background image).
Several forums suggest to use a css style:
i.e. http://www.velocityreviews.com/forum...xed-image.html

So I tried various css styles (including div's and calling them a css style), all with position:fixed, none of these proved to work (atleast not in I.E.7 and FF 3). Anybody got a sollution for this? Maybe a javascript that does the same? or some redirection for further help?

Thanks,

JC

aegir