I can't activate my theme, it says "Cheatin' uh ?... Theme doesn't exists" (translated from french).
It seems to be well installed (I can see it through Filezilla) though.
About your issues, pls send FTP and Admin web account for me, I will check and help you.
and leave this ticket at make private.
Opal Support Team
We are located in GMT +7 time zone and we answer all questions within 12-48 hours in weekdays. In some rare cases the waiting time can be to 48 hours. Support tickets sent during weekends or public holidays will be processed next Monday or the next business day.
If you like our theme, Please vote it 5 stars. We are really really appreciate your vote :To vote go to http://themeforest.net/downloads then follow that link : http://screencast.com/t/ylPjXebiCIOEThanks and have a nice day
Please re-install wordpress by default, I checked and found the wp-config.php file has been changed, and please change the permissions folder (folder = 755, file = 644)