I said in my first post that I would report on finding's on getting mods working with TTW.
MMM by Martigan on F03 Nexus,
Ok so assuming you know how to change the headers to FalloutNV.esm from Fallout3.esm
1st) you cannot install the menu option that requires FOSE, so you have to use the ESP's and you need to pick the one's you want in your game and change their header's appropriately.
2nd) Load Order is important! There are quite a few ESP's and the way they load can determine if they function as intended, Note that it is assumed that you will use the FOSE method on the main page so this is important.
Mart's Mutant Mod.esm
Mart's Mutant Mod.esp <--This goes here right after the ESM
-No Floater's (and other NO choice's) <---If they come before MMM.esp they will appear in game
DLC esp's and Natural selection and Tougher Traders here
Increased Spawns.esp <---2nd to last after other MMM esp's, otherwise it will not function
MMM-Zones Respawn.esp<---The last MMM esp, note that it will not function otherwise.
OtherNotes
Should probably not use Hunting and Looting, you may experience unintended behavior in game. Unleveler and Dynamic Scaleing may put too many creatures in your wasteland, and require call functions to be made ie more scripts firing off, should opt for performance given the nature of TTW and the other mods you will want to install.
Edit as of 3/8/2013
Dont use MMM, it causes a lot of conflicts and overall is pretty buggy, crash fest in TTW...BUUUT
use this by the same author Here's the link: A pair of stand alone MMM increased spawns and zones respawn esp's
http://fallout3.nexusmods.com/mods/1415
It's not without a drawback. You need to realize that random mobs spawned by will be set to "USE FACTION DATA" ordinarily this is not a problem what so ever.
But the thing is FNV.esm has changed ordinary Brother Hood of Steel Members to Hostile to Player faction, you see there are a few scouts outside of the Hidden Valley Bunker that are supposed to attack the Player, they are there at odd times of the night for like 2 to 3 hours only. This of course becomes a problem when ever a BOS patrol spawns with this esp, not sure about base TTW.
The fix is easy too, you just deep copy overide the BrotherHood of Steel in Faction tab of TTW and change the "hostile" to "ally" you can add it to your merge patch or better to a new esp.
If you don't do this than any time a patrol shows up they "could" have a guy that goes hostile. 1st time I saw it was at GNR building when new BOS spawned in.
Note I have gotten a toon to level 16 with increased spawns on and no crashes due to it. So if you want more to shoot and worry about in the wasteland that's a sure bet for good times.