Ok, finished
I'll tell you how I did with success (You must have the 3 archives):
a) The original mod archive "Azgath N'Dul's Tonb 2.0" mod -->> http://deadlystream.com/forum/files/file/370-azgath-nduls-tomb/
"Fixed changes.ini for DI's Tom of Azgath" -->> http://deadlystream.com/forum/files/file/254-fixed-changesini-for-dis-tomb-of-azgath/
c) "Azgath N'Dul's Tomb Patch 2.2" -->> http://deadlystream.com/forum/files/file/371-azgath-nduls-tomb-patch/
Now:
1- Unzip all archives (a, b, c) in their own folder
2- Take the unzipped "b" archive (changes.ini) and put it in the "tslpatchdata" folder of the unzipped "a" overwriting the original "changes.ini"
3- Install the mod (Azgath N'Dul's Tonb 2.0) normally
4- Install now "Azgath N'Dul's Tomb Patch 2.2" normally
5- Enjoy this great mod
6- Don't forget the very important point 5
I hope has been helpful