How to add new province? [modding help]

I dislike the fact that each house only have 1 title, and once lost they fades to obscurity and replaced by a no-name, upstart, god know who, ugly coa peasant. The know dynasty should have at least 1 more county to to fall back as stepping stone to regain that honor that was lost. 

Anyway, I want to mod a couple of new province into my own game, but couldnt managed to make it works. Any advise?

I had...

1. Copied the map from AGOT 2.2 and edit the provinces.bmp splitting Harroway's Town into 2 provinces. 
2. Changed the definition.csv and added the new PROV numbers and color code
3. Raised the max_provinces number accordingly 
4. Updated the contents inside /history /provinces /titles, /common /landed_titles /westeros_titles 
5. Created new .tga flags and the localisation
6. Used Nudge tools to get the new positions and updated it accordingly.

Yet, when i launched the game, the newly created province is visible but not clickable. It says 'no character'
Anybody know where's I messed up? 

Thanks