You just want the window up?
Is big cable coming off window motor still there? I assume it is as you're trying jump the motor.
Pull the cable off the motor and put a cordless drill on the exposed cable end and wind the window up. Put cable back on motor til your ready to wire it up properly.
If cable is NOT there you need one. Window will not go up with out it.
Take a look at this thread.
http://67-72chevytrucks.com/vboard/s...d.php?t=644055
Shows rear wires to lock switch which controls the motor.
Blazer/Suburban are same.