Setting rights permissions

[gasparirob]

Hi all,
I'm trying to set upload images this way:
registered users can upload images (and create category/sub-categories too) but images must be "approved" by admin (or other) group.
So, new images can be authorized by default but not published (and the registered user can NOT publish images) or, viceversa, new images can be published by default (and the registered can publish/un-publish images) but not authorized.
I've been able to obtain the second one (published by default but not authorized) but now I wish a "X" group (and only that group) can authorize images WITHOUT log-in to backend: on frontend they can see unathorized images and authorize them (or left them unathorized).

How can I do?

Thanks in advance.

ps: I'm using joomla 3.2.0 and phocagallery 4.0.2

[Jan]

Hi, the images can be authorized only in backend.

Users in frontend can publish/unpublish them but if there is authorizing rule, such can be managed only by administrators in the backend - to change it, I think, the code needs to be customized (to set other group to be able to authorize and to make such authorizing in frontend )

Jan