I was hoping to grant users permission to upload albums in all the categories. Can I do this? If not, can I put several subcategories in the users galleries category for memebers to post in?
No but you can create albums on all categories and set the Visitors can upload files property of each albums to yes
So I guess there is no way to allow users to make theur own albums...
When you say visitors you mean registered users right?
Users can only create albums in the dedicated user gallery section. Visitor means anyone who visits the gallery, regardless of if they are a registered user or not.