I had to go to Styles & Templates -> Style Manager -> All Style Options and change all the image paths to start with "/forums/images" because I have my forum installed in the "forums" directory under the root- you will need to customize this based on your forum... You will also need to make these changes if you have any image tags in any of your templates that you need/call from vbadvanced for me this meant changing my navbar termplate to replace calls to "images/
folder/
file" to "/forums/images/
folder/
file" adding the '/' in front tells the browser to look in the root of the website so you need a more complete path then without the '/' in which it looks under whatever directory the page is called from.
Finally I had to make the same changes to all my smilies... 307 of them at the time... manually.

and will have to change it each time I add a new one from here on out.
vbadvanced has it's own support forums on their site, you may get better info from there.