When you say you're not allowed, what do you mean? Do your parents say you're not allowed? Or is it an isp/computer restriction. If the latter, and your parents are okay with it, you can use a VPN.
c0w was talking about the upload a file button for the helpers, that we're not supposed to have.... You can probably still use the image URL like Leo though....
I can't see the upload a file button, and I'm having the same problems, I'm not allowed on imgur either