You're not supposed
to kill Boba Fett. God forbid he dies and angers all the Fett fans out there...even though he was supposed
to die in ROTJ.
*Runs from Fett fans*
Anyway, you just want to hurt Fett enough that he flies away for a bit and gives you some time to destroy the weapon crates. He's invincible anyway. He's a nusiance, but really not as tough as I would have thought he would have been. Just be careful when he whips out his rocket launcher and push the homing rockets away from you.
After you destroy the weapons crates you'll have a final showdown with him by your ship. If you win, Boba taunts you in an attempt to salvage his wounded pride and flies away.