What you do is, you go to submit<img> art at the top of the page. Right under(and to the right a bit) where it says "choose and upload a file" it should have a link/button that says "enter text". When you click on that, you can begin writing. Then when you are done, just choose a category and hit submit. When thats all over with, you go to the writers--club page and scroll down until you get to their gallery folders and second down on the left side should say "Tournament Round I" (or just click the link thing <-----) Then in the top right of the page there should be a pretty big button saying "Contribute to this folder." Just click that and choose your poem or prose, then click submit. After that it you will have to wait for it to be accepted... 
good luck 
good luck sorry third down 