I am not sure on your definition of groups as in what you mean by vb has groups.
You can as with any gallery software you can create categories or allow members to create personal albums if you wish to store and separate photos.
vb4 album is not a gallery software so our software allows much much more than vb4. vb4 users can create albums to display in there profile as it did in vb3. The main focus on vb4 was the new style and template system.