Photopost photos in profile is here http://www.photopost.com/forum/showthread.php?t=121321
Photo link in postbit is easy but it shows for all user's. You could add a query in your php file to check to see if they have a photo count but this would not be advised since it would add say 15 queries etc per page.
A members photo gallery link in photopost is like this
Content visible to verified customers only.