Dodge sport Dakota 95 cranks but won't start

I have a Dodge Dakota Sport 1995 pickup. It was running fine during the summer; we use it occasionally, being the last time about 3 months ago. I tried to start it last week and the battery was gone. I took the battery to AutoZone and they charged for me. I tried starting again it make the sound, and you can see the belt turning but it wouldn't start. I tried adding some more gas, and also sprayed some Engine starter into the carburetor but anything helped. Then I towed with a towing rope pulled by other vehicle and tried to start by releasing the clutch on 2nd gear. While the other car was pulling and I released the clutch I could hear the engine like it was running and I was able to feel the steering wheel smoother, but when I push the gas there wasn't any increase on the engine RPM's. Also every time the other vehicle stopped pulling the pick up's engine will stop too. I was thinking it could be the gas pump.
Any suggestions? The temperature is really cold too about 17 degrees outside.