[TUTORIAL] Making BMS Scripts; Post and get help with your BMS scripts!

[LBPPlayer7]

Hello all, i am having some trouble with 3 different files from the world renowned critically acclaimed best-seller MiNi NiNJAS. I tried making some scripts, but they did really nothing and i had no idea what i was doing. I tried my best to follow the guide, but could really never decipher what the first four bytes were. 

I am trying to open the PRM, ANM and TEX files from the game to figure out where the 3d models are and to eventually make a tex unpacker/repacker.

 Could anyone help me in creating a code or explaining what i need to do? 

example file link

I have looked into the file using Notepad++ and it doesn't have a header, it just jumps into the DDS files it contains, and they all seem to be in DXT1 if that helps.