Ok this is a noob question but i'm a noob anyway so it doesn't matter i guess

i'm posting this here because i didn't find this anywhere else.. sorry if its already there somewhere and i missed it somehow..
Any game i create seems to have a washed out and bland look no matter how many lights i add or how sharp i make the textures. I'm wondering if i should start using shaders.
I'm no high-level directX programmer so there's no way i can program my own shaders. I recently downloaded a 'toon shader' from the website earthcontrol.de. I'm not sure what kind of shader it is (pixel/vertex/material). It has a .wdl script and a .fx file.
Say i have made an FPS game in Gamestudio, defined all the textures, models and lights. Can i just add a few lines of code that will implement this shader? Or is it going to take a revamping of the entire code for the game?
Or should i learn directX

?