Problems with the DMO Pack Manager and Nifskope

[Lucky Cross]

Note* The game in question is GDMO = Global Digimon Masters Online from Joymax.

Does anyone here know how to update the freakin' EDMO/KDMO.dmop files?
Every time I try, I get this annoying error message:

An exception occurred.File='src\file\dmopmArchiveFile.cpp', Line='118', Reason='Invalid File Format'.

(Same thing happens when I try to Map the directory).

Here are the pictures showing my DMOP configuration:



I have watched every and all Tutorial videos on YouTube about Texture modding but, not one of them shows you their configuration...

So, if anyone here can help me out...that would be MOST appreciated!!

PS:

If&when I manage to fix this problem my next question will be: "How to configure Nifskope?"

(Again, NO ONE shows you anything!! They all just either show how to import the pre-made textures
or show how to mod them but WITHOUT showing us their configuration!!)

And if you ask a question about what I just wrote they will either:
a) ignore you/dodge the question (possibly due to their own ignorance about the problem)
b) call you a NOOB
c) give you an answer that only confuses you even more!