Bomberman is a fairly simple game (although writting good ai is far from simple) so you just have to think about what the enemies have to do:
-drop bombs, more specifically, drop bombs in front of player
-avoid bombs
-march around
Maybe looking up bomberman ai in google might help.
You shouldn't have to learn/STEAL this from other sources, it can be thought up by yourself. Have the enemy bomb any bombable objects near it UNTIL a space is open to attack another player. Then have it place a bomb on the same line as a player.
looking at code to get ideas is stealing?
great, i guess 90% of all programs are stolen (cause you can 'steal' ideas then too... buttons, layout, organized groups)
greets
lumo
PS: using open source programs/code is in no way stealing
"Good artists copy, great artists steal." Pablo Picasso go2lumo.com