Transmission Control Solenoid Replacement?

Recently my check engine light came on and then while driving I lost power steering and the battery light came on so I pulled over, turned off the engine, waited 5mins, checked my belt(nothing wrong),and started it and the power steering worked and battery light was off but check engine was still on. I replaced the alternator 15,000 miles ago. The code came back P0753 Tranmission Control Solenoid Shift Solenoid "A" Electrical? Does anyone have a step by step guide on how to drop the tranny and change the solenoid? I have no idea how it could of affected my power steering or if it's 2 different problems? It's really hard to put anymore money into this so I have to do it myself...