New Oil Tank Line - Now no Circ Pump?

Just replaced the crushed Oil Line from the Oil tank to the furnace. (Got crushed by falling wood pile in celar (dont ask). Furnace runs fine, doesn't over pressurize etc. However circ pump doesn't start. Since we just moved into the house, we turned on a hot water heater we found in the celar that had the circuit breaker turned off. Wanted to use that while we waited to get the oil line replaced. My thought is that since the hot water tank was on, the circ pump on the furnace wont start because their's hot water already in the line? Just doesn't sound right. Turned off the water pump for the night hopping the furnace circ pump will eventually kick in. Am I way off base? Furnace didn't run for about 3 weeks. How can i force circ pump on to see if it's not frozen up (it looks like about 10 years old. Any ideas would be greatly appreciated. Dont have any idea on how to blead the lines, read that in another post.