You should learn how to deny creep kills then... Thats how you do it. They will always level faster than you if you dont deny. Thats how it was made to give you a challenge. That or you need to play more and get better.
I'd attatch the map file for AI but its too big. Just google "DotA_Allstars_v6[1].32b_AI_v1.90.w3x"
what do u mean i should deny kill creeps? u mean i need not kills creeps, i need kills only ai heroes? Chieftain Warchief and Phantom Assassin rules! :P anyways, thanks for helping...