Before you begin your work, just be sure of which episode you want to modding. As an example, the ep3 interfaces only work with a ep3 game.exe! ep4 interfaces only work with a game.exe ep4!
and so on. So you seeking an episode where you know it is already a functioning game.exe (ep 5.1 is the highest) and then edit these files.
Radioactive is nice, but has nothing to do with shaiya! So take pastel tones shining lights effects then make your modding