what's up with this site?

This is messed up I signed up for this site earlier today and i put up some pics and even got a comment from some1 but when I went to sign back in tonight it said I was not a member so I had to sign up all over again!Well I didnt mind doing that but now when I go to put my pics back up it's not letting me,everytime I press the browse button and pick the pic I want it doesnt do anything and there isnt any submit button???Does any1 know what is wrong?Please leave me a comment if u can help me out.