Five year old battery sounds like a problm to me. You can take it by an auto parts store to have the charging system checked if you can get it started. I would try the jump again making sure you have good connections. You also can unhook a cable on the truck battery and put the jumper on and run it for a few mins to charge the truck battery.
It does sound like it's time for a new battery. If your original battery is really dead or just about dead a jump start won't always work either. It just drains off the juice from where you want it to go. You could try charging it but it may not take a charge or it will give you a false reading of a good charge till you go to use it. I would try a new battery and it should send you on your way. It's unusual to have a battery last any more than about 5 years. Maybe even less in more constantly harsh climates.