Well guys, to my great surprise, and with the help of some kind fellow on EB's site who posted a basic 'how-to' on this, I've managed to make the old hated Senate and entirely playable faction!!
I made all the necessary changes, along with a few I found that weren't mentioned, and went into the game as the Romans in the Senate Campaign. We were supposed to be allies......no senate missions, and the second turn they attacked two of my cities with those huge armies of theirs!!!
I guess that means they don't like me anymore?
The recognized faction that RTW now sees is called 'MAURYAN'....wonder why?
Anyway, this is going to be a big leap forward for the merger with Res Gestae, because I have a place to put their neat Indian skins. But this is going to take a while to hash out. Patch3, which I will test tomorrow and upload will not include this change, and probably not the first release of Roma Surrectum. But it's a big step forward because it means the already new factions added, and the lively Free People, will stay.
Thanks to 'Cherryfunk' for first mentioning this was done somehow...I had never heard of it until he said another mod had done it.