ABS & Brake Light (Beating a Dead Horse)

Ok, I got some helpful info from the previous threads on this subject, but I don't just have $300 to throw around and these already sucky brakes. Please help me determine if my ABS Control Module is the culprit.

- the lights do not come on immediately (about 20 min of straight driving)
- they go away after each restart
- brakes lock up under heavy braking half the time and the pedal is hard the other half with no locking
- if I ride the brakes the pedal softens up and you have to go all the way to the floor with it jerking to a stop.

Does all this sound like the ABS module only with solve my problem?

Also, has anyone been able to figure out how to reset the blinking light after a new module is installed?

Thanks for looking

This is a $20 Rear Differential ABS Sensor, buy at NAPA, installation is 1 bolt, and one quick disconnect wireing harness at differential, The sensor is on the top of the rear differential.