Help! It Cuts Me Off

I don’t really know my version. At the bottom of the page it says Kubrick, and the Horton Foote Society built me the website in 2009.

There is one “post” on there, and my problem is that if I try to add to it, or change it, after a certain number of lines, it won’t print any more lines. So I have to make the post very short. It won’t let me go past a certain number of lines (maybe the number that were in the original post? I just try to go into that slot and change it. I’m not originating a whole new post).

Obviously I am very ignorant about computer things, so please make any suggestion very, very simple to do, in simple language.

http://dustbowlpoetry.wordpress.com

Thank you! 🙂