As just a fighter, the only advice I have to give you is "set your rogue up" and accept the buffs from your wizard and cleric and you'll be fine. By setting up the rogue, I mean position yourself in a manner that the rogue can put himself so he is flanking the enemy you are fighting without endangering himself. This will allow him to full-attack and hit with sneak attacks every time.

Grab Combat Reflexes and Stand still and stop the enemies from running away.