Replacing Heater Core Jeep Cherokee '00

I have to replace the heater core and it has been suggested the airconditor evaporator in my daughters jeep cherokee '00. I understand that to do this I must remove the dash. Does anyone have any suggestions on what resources I could get my hands on to assist in this project? Manuels, diagrams, articles anything that might give me a place to start on a repair like this. Thanks,

There is a 2000 helper at this site http://www.lunghd.com/Downloads_and_Links/Downloads.htm

Download and unzip look in section 24 near the end (pg 24-36)

JD