OK lads, found a solution to that annoying auto upgrade thing. If you change a version number in style.css line 6 to for example 100, autoupgrade message will disappear.
Wordpress is trying to be clever and finds a template that is probably called the same name. Please uninstall that theme and install theme purchased from Themeforest, that will sort the issue for you.
We'll try to find out how to disable that automatic upgrade.