Re: switch from photopost to VbAdvanced Gallery
You can set any category you would like to allow your users to create sub-categories under. If the category is also marked as a "Members' Category" then any sub-categories will be added under that user's name. To get a little bit of a better idea of how that works, I would suggest playing around on the demo to add some categories and such. The "User Sub-Categories" category there is just a regular category and set up to allow users to create sub-categories. Then the "Members' Category" there is marked as a Members' Category and set to allow members to create sub-categories.