Help with themes

Hello all,

First I have to say that I think this is an awesome product. I have been working on making out own theme as per the instructions on this website. I have gone through the documentation several times now. the problem I am having is when I go to upload the theme after zipping it up. It says the theme has been successfully uploaded but when I navigate away from the temes section and return, the them doesn’t appear. when I try to re upload it, it won’t allow me too.

any ideas where I can go to from here?