Then I would guess you've done something wrong when setting up the folder.

1) Unpack all files, I would recommend to the default data directory (i.e. just use the unpack_all.bat or whatever it's called that you got with the patch).

2) Create a folder in the main M2TW folder called "MyMod".

3) ... "data" in your "MyMod" folder.

4) ... "world" in MyMod\data.

5) ... "maps" in MyMod\data\world.

6) ... "campaign" in MyMod\data\world\maps.

7) ... "text" in MyMod\data.

8) From the default data folder, copy the "data\world\maps\campaign\imperial_campaign" folder into "MyMod\data\world\maps\campaign\" folder (so it'll look identical to the original).

9) ... copy "data\world\maps\base" folder into "MyMod\data\world\maps\" folder.

10) Copy "data\text\imperial_campaign_regions_and_settlement_names.txt" file into the "MyMod\data\text" folder.

11) Create the new MyMod.cfg and mymod.bat files (see previous post).

12) Copy whatever files you want to edit from the original data folder into your MyMod\data folder (and make new folders for the files if you need to). For example, if you just want to edit unit stats, only copy "export_descr_units.txt".

13) Edit the files, run the game.