Not too sure, I use Photobucket for mine, but I saw in the OP that they coded it, basically they put a IMG tag for the pic and a URL tag to your profile on ImageShack. Delete the URL each time or find another IMG tag code that excludes it. Maybe there is an option buried under your settings?
lol, the pic was so big I could see the red grain in the resolution....at home I would've been fine, 23" monitor does that, my work 17" can't quite handle that one