tried to hit install and that bit doesn't work but cancel does. did a clean flash and tried again and doesn't work.
tried using titanium backup (I used the AROMA to install it), it installed a few things(Nova Launcher, some widgets, a game) but then it stopped working (the "Do you want to install this application?" comes up but cannot choose install)
then installed ES File Explorer from the play store and that won't let me install anything also!
Here is a image of the install screen that I am mentioning, it's just there so you get the idea.