You should have just gotten an OBD0 to OBD1 conversion harness... Now you have to color code all the wires (hope they are the right colors since they vary by year/trim) and find somewhere thats willing to cut a an OBD1 under dash harness by the ECU for you (doubtful youll probably have to but the whole under dash harness and cut it yourself) and splice it on... And thats only on the ECU end, then you still have plenty more work under the hood...

Some pages that should help you...

http://www.geocities.com/kurtsi_on/page8.html
http://www.thezcr.com/html/wiringharnesprep2.php