Note: Unzip the first file you downloaded from themeforest. You will find more files inside there and then the correct one to upload. There should be a help file to help you out.
Great information from themolitor that should help you out.He has a presentation on ‘Advice for Selling Themes’:
Make sure you purchased a WordPress Theme.Then see this video and walk through: http://wiki.envato.com/buying/support-buying/solving-broken-theme-issues/
I would reserve judgement on calling it a bad experience until you figure out if it is user error or the theme .
Wrong Adora theme sevensparkThe correct contact will be the author ErmarkStudio:
http://themeforest.net/user/ermark and/or post a question in the item discussion area:
Don’t worry, it’s usually an easy fix.See article and video: http://wiki.envato.com/buying/support-buying/solving-broken-theme-issues/
Note: Make sure you are using a WordPress Theme and not a Site Template.
That makes things very easy for you