our vbgallery product does not have a register file thats your forum
You need to make sure whatever links you to files in your header or navbar have been added to your gallery global replacements part of your settings so they are written with the forum url. Manly Stuff - By Men, for Men!
Your forumhome looks fine I see the block of gallery images
Your gallery categories are only going to show on your gallery much like your forum categories show on your forum.