Here's what's happening. vB is firing off the data. We are requesting it in an html page when a popup is requested.
You can mimic this behaviour by changing the your vbgarage_imagebits template to this... vBGarage is not sending as many headers as vB though, so your milage may vary.
HTML Code:
<a style="cursor:pointer; cursor-hand" href="$vboptions[bburl]/vbgarage.php?do=getimage&id=$image[vbgarageid]" onclick="PopupPic(this.href); return false;" target="_blank"><img src="$vboptions[bburl]/vbgarage.php?do=thumb&width=100&id=$image[vbgarageid]" alt="$image[name]" border="0" /></a>
Here's a link to you.
http://www.prodoggroomingsupplies.co...getimage&id=52