its pretty easy. just drain the radiator, drain the engine block and unhook the coolant lines. then remove the top mounts and disconnect all the wiring attached to the fans. then just lift it up. the put the new one in, and fill the radiator with coolant and bleed the air out the cooling system. if you need a service manual for your car, visit:
http://www.hondahookup.com/manuals/.
or if you just want a general idea of what is involved, visit this site(i know its for integras, but it gives you a good idea of what is involved:
http://www.team-integra.net/sections...?ArticleID=763