Only you know the setup of your site. If you want help then you need to explain what your current setup is and what the problem you want help with is or your posts will just get ignored.
You can download the community edition and install that, that's the free version. Some hosting companies have an auto-install button.
You're licenses are tied to your account so when you setup the marketplace in your site you will be asked to provide your email and key which for you can be found here:
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After entering that key all the prices should disappear from the modules in the MARKETPLACE tab of your site so you should be able to install them.
Send me some access codes to a user who can see the player in your site. Send it to support at jamroom dot net attn: michael with a link to here and I'll login and take a look. won't make any changes without your say so.
A good way would be to make me an admin account, send the details then deactivate the account or put it back to regular user after I've finished.