Start > My Computer > Local Disc C: > Program Files > EA GAMES > MOHAA > MAIN

You put the pk3 files in your MAIN folder. You put the OPENGL32.DLL file in your MOHAA folder. I would suggest making a shortcut on your desktop to both your MOHAA and your MAIN folders so you won't have to go through that whole long process when you want to try something new, or if you want to remove something. Just RIGHT CLICK on your MOHAA or MAIN folder and select CREATE SHORTCUT. It will create the shortcut, then you need to drag it to your desktop. 


OMGWTF?!?! I did all that but my hacks aren't working! 


It's probably due to the fact that you've not associated any program with which to open the pk3 files. This is simply solved. RIGHT CLICK on the pk3 file and select OPEN WITH. Scroll down the list and select NOTEPAD. You then need to check the box at the bottom that says "ALWAYS USE THIS PROGRAM TO OPEN THIS TYPE OF FILE". You then press OKAY and you should be all set.