Your window motor will have to be changed, Rebuild it? Its pretty inclosed I don't think you can rebuild it. You could remove the door panel, use WD-40 and lube all the hinges , motor & rollers that should free up everything you may have to push up on the window a bit. that should fix it for a bit or at least get it up until you can fix it in the warmer weather.
Heater & A/C doesn't blow? Open passanger door or passanger window & hood, with truck running and the a/c on hit the blower motor(located right side firewall with a hammer & feel for blowing air on your passanger vent, if it comes on then its your blower motor. Its actually an easy fix...
Is your air is getting blown to the DeFrost mode? If all air is getting deverted to the defroster then its the sensor(the get old and rust up, there kind of like a spring filiment) by the blower motor once again an easy fix one or both would take you 20-30 minutes...