The product description is available in the page under the Description tab, just to the left of the Reviews tab. Tab switching is achieved by Javascript, but your page contains several non-related Javascript errors. In Chrome, check the console to see the errors. These errors are preventing the tab switching Javascript from working.
The Javascript errors seem to stem from whichever server you are pulling the product images from. That server is preventing access to the images. Presumably you have an account there, and its likely that the account is not fully configured. For further help, please contact the service that is supplying your images. If you can get that working, its likely that Description tab switching will work.
Yes, you could show a short description with a more button, but that’s probably more development work than would be normal for a forum answer.
We haven’t heard back from you in a while, so I’m going to mark this as resolved – if you have any further questions, you can start a new thread.