Download launcherpro(dont have to set as default. Just needs to be installed)
Add activities widget
Set stock launcher as default.
Add activities widget to desktop
No offense to anyone but this thread should be temporarily closed, only because it will be just a lot of people asking about ETAs and why this, that and what happened. That will take the pressure off and rom can be released when he is comfortable ...
Yeah, I'm not sure, but I think you just need another ROM that has the same Android version(4.0.x) and from the same manufacturer. So if my Galaxy S2 CM9 isn't being supported or w/e, you can download a CM9 ROM for the S3 and copy&replace the file...