postbit templates?? There is nothing about postbit templates here...

Take a look at your "Site name, URL etc" vbulletin settings... Are they correct? Cause it takes the forum url from these... If you can't find what's wrong replace in e-steki_smilie_creator template (if that's it's exact name, I don't remember exactly but if you search your template titles for "smilie" you'll find it

Replace all instances of $vboptions[bburl] with your forum url...
Btw people when you see red X's then right click them -> properties -> copy the image url -> paste it in address bar and see what you get. It will probably help you solve your problem youself instead of waiting for support