Right now, there isn't a setup guide for this.
My recommendation is to have another clean Titanium folder, grab the Green Beta patch zip file from the front page, extract it in the Titanium folder, and use that folder's "Launch Titanium" batch file to boot it up for Green.
I also recommend using Duxa's tool to clean up your P99 directories to get rid of the unused stuff and save you some space.
|