By forum, do you mean on a thread, in the pictures gallery, or do ya mean in your personal profile page? If you're gonna post pics in your profile page then it really shouldn't be too hard. As for the one about the "Share Photos" thing, I really have no idea how people put stuff in there. I looked through the whole thing top to bottom, and found no link allowing transfer of photos. It's like a totally different thing apart from the actual forum... And then posting pics on a thread needs you to find pics from a web link....
Anyway, Question #2 Answer:
Yes, they let you post anything, as long as it's appropriate of course.
PS: Make sure to respond to me on my profile page, if i hadn't been curious to wander on your profile page, I wouldn't of been able to respond to your questions!