I've done a clean install of vbulletin 3.8 (in order to get impex working), then upgraded to 4.2. All worked fine.

Vbadvanced however does not play nice. We get some very weird looking buttons on the front page:

The image path of the missing image is
I've searched through the original install files for both vb38, vb4.2 and vbadvanced, but that image is no-where to be found.

Any ideas?