Ah ok sorry. Still maybe best to contact the author but:
Opt 1: In your download page click download & select ‘installable WordPress File Only’ & use this (if you can’t see this then it is not a WP theme).
Opt 2: Are you sure you have the WP theme and NOT a HTML file?
Opt 3: Are you using your own hosting and domain NOT WordPress.com
Opt 4: Unzip the theme folder and use ftp to install it
Almost certainly – obviously I have not seen the mail but if they could do this then why not create their own files and then not have to pay you.
Also you have 1 file for sale with 33 sales (and you know your item is on various affiliates already ?) – it just does not make realistic sense for them to be able to do it.
I’ve never used it but for $9 its not a lot and says Share Button – You can now use a customized Facebook Share button to unlock traffic pop!
It don’t look responsive but that’s not a lot to get fixed
Your only alternative if you really want peace of mind is to hire someone to code it specifically for you. https://studio.envato.com
Surely this is what you need? http://codecanyon.net/item/facebook-traffic-pop/142429
It locks the whole site (just disable the timer)
Make it as transparent or solid as you want
Its not for WordPress
100% customisable (don’t know about an admin panel but you would probably need this custom done if its an absolute must as there is an assumed degree of knowledge with stock files).