June 15. I had forums before that, but 2 disappeared, and one was offline for a couple days. I made the new forum when my other forum was down.
I am not sure about sharing files, you can upload them to savefile.com
though. (pictures can be uploaded to photobucket)And post a link in the forum. I don't believe my forum has enough space (because it's free) to upload files directly to the forum.