What r the commands to b given for configuring STACKING OF 3750 CATALYST SWITCH

I have a cisco access point ( model : AIR-LAP-1242AG-T-K9). I want to know how can I access it through GUI. The IOS version is 12.3(7)JX . Is this version OK. What is the difference between LWAPP & Autonomous mode. What may b d IP adress of the acces...