Yea, I understand. The best thing you can do, is simply find another host, make another account, or upgrade to Pro. I suggest you find a new host, there are plenty out there. Just search for free image hosting.

Alternatively, if you have the connection for it, you can host your pictures from your own place. This requires some setting up though, and you'll have to have a computer running constantly. Also, if your bandwidth is really low, then it's gonna strain it quite a bit. A friend of mine is hosting a relatively big community website, along with an IRC server on his 40Mb connection.