Sorry if wrong section
The most problem that probably occur when installing vbgallery is url problem.
The navbar link that supposed to point to your forum url is pointing to the gallery url.
-This thing actually occur because you use custom style instead of the original style.
-To solve this issue, you need to know that in which part of the custom template that the link appear? If it appear in the header part, then you need to go to the admincp >> vbgallery >> general setting.
Then you need to place the url that contain the pointing error inside the header section.
Your members adress supposed to be http://www.website.com/forum/members.php
However the navbar at vbgallery show it as http://www.website.com/gallery/member.php
So, what you need to do is enter "member.php" inside the header section at vbgallery general setting.
*However, you need to remember that if the link appears at the footer of your URL then you should place the link inside footer section.