what to do with store-bought orchids?

[tokidoki]

HI orchid lovers.. i have a question.. i recently bought a phalaenopsis hybrid orchid about 1.5 to 2 weeks ago from the store.. i havent watered it eversince then because the roots are heavily wrapped in damp spaghmum moss and im afraid that if i water it, the water wouldnt evaporate quick enough which will created root rot.. the orchid is blooming right now but has alot of buds that havent opened it... what should i do? im afraid that the orchid is thirsty right now but everytime i dig my finger to touch the moss, it feels wet. but its almost been 2 weeks since i got it and i know it hasnt been watered in the store recently.. can orchids survive long weeks without water but being wrapped up in lots of damp moss??? should i just leave the orchid alone because its trying to bloom its flowers or should i repot and take off the old wet moss and put in bark mixture? please help.. and also when can i safely water the plant and how much water? a thorough drainage or no? your advices would really help...