The blower motor is on the back side of the heater box, underneath your dash, the back of the blower motor is under the battery and it sticks through the firewall(round cylinder thing. To pull teh motor you have to pull the whole heater box out. Disconnect all control cables and electrical from teh box, the box is held to the firewall with 4-5 bolts that stick through the firewall and you just unscrew the nuts and in theory the whole thing should come out from under the dash...
alex