Here's your basic FWE MMM load order
Fallout3.esm
Anchorage.esm
ThePitt.esm
BrokenSteel.esm
PointLookout.esm
Zeta.esm
CRAFT.esm
CALIBR.esm
FO3 Wanderers Edition - Main File.esm
Mart's Mutant Mod.esm
CRAFT - Activation Perk.esp
FO3 Wanderers Edition - Main File.esp
FO3 Wanderers Edition - DLC Anchorage.esp
FO3 Wanderers Edition - DLC The Pitt.esp
FO3 Wanderers Edition - DLC Broken Steel.esp
FO3 Wanderers Edition - DLC Point Lookout.esp
FO3 Wanderers Edition - DLC Mothership Zeta.esp
Mart's Mutant Mod.esp
Mart's Mutant Mod - DLC Anchorage.esp
Mart's Mutant Mod - DLC The Pitt.esp
Mart's Mutant Mod - DLC Broken Steel.esp
Mart's Mutant Mod - DLC Point Lookout.esp
Mart's Mutant Mod - DLC Zeta.esp
Mart's Mutant Mod - FWE Master Release.esp
Mart's Mutant Mod - FWE Master Release.esp is a seperate download that you can find http://fallout3nexus.com/downloads/file.php?id=4968, it's in the download "FOIP - Marts Mutant Mod package"