bikini waxing before wedding??

hi...i read all the thread...really very interesting!! and i can say waxing is the best u can do!!

just wanted to ask whats the different of "normal wax" and "cream wax"??

and another question...dunno how to ask (so i am sorry if i cant it describe on a gently way....)

gals do u also remove, wax however...the hairs behind?? i mean behind the brazilian/hollywood zone...??? if yes...how do u do that...because its impossible to remove then on urself....