Alright, I actually went back to attempting hex coding for Fox's scouter. I've read up on the EE guide but I got as far as obtaining my hex code for his scouter color that I wish to turn semi-transparent:
0100000010011111 (409F) - This is my 'Tiamat475 V.2' Texture. (57% transparency)

So...I'm lost from this point, but I am willing to learn and understand. Just to make sure, would I replace the hex code in a .tpl version of fox's headgear? Or would I use the .targa file? If none of the above, please state what it is. Much appreciated if a basic list of steps to creating a semi-transparent scouter were posted here.