This is the solution for everyone tath can't install correctly mods with install programs. The problem should be tath on home edition there isn't the support for XP MODE, a way to bring 7 in compatibility mode with Vista and XP softwares. Only PROFESSIONAL, ENTERPRISE AND ULTIMATE supports XP mode.
The way is to install the mod in a different folder...
Example:
1- I install Patria Libera Total War on the Desktop (C:\Users\xyzw (user name)\Desktop\)
2- I move the folder Patria_Libera in this path: (standard folder) C:\Program Data\SEGA\Medieval II Total War\mods\
3- if I want, I create a Desktop icon.
Enjoy all.