heater a/c controls ? for a 98 and 2002

[funinthemud]

i have a 98 w/ a/c does the 98 use the cable for the i guess heat flap, or is it vaccum? mine was stripped out and i'm not sure. also i got the heater box assembly from a 2002. is it the same or will i need to convert. i have no idea how all this works this is the frist time i have ever had to mess with any of this stuff.

thanks
jay