repotting??!?!?!?!?

[shahrezsyed]

i bought a white phalaenopsis here and it was so root bound that the pot was about to burst.
last time i bought one it was just the same so i tred to repot it and it was so root bound even from the bottom of the root ball and inside the root ball(after soaking the roots to make them more pliable)that just as i tried to loosen the rootball even slighty the roots would start to break and they just all broke up so it died then i have bought another one and seek advice on how to repot it because it REALLY needs to be repotted other wise the root system is really healthy but half of its leaves are drooping!!! i was thinking due to extremely hot temperatures in pakistan can i grow my orchids indoors under gro-lights by putting them on humidity trays?and can i cut scorched leaves and will the drooped leaves become stiff again after introducing to cooler temperatures and watering it lesser(it was being overwatered before!!)and no no orchids of better quality can be purchased in pakistan...
shahrez