[Manny_boy]

It sounds like a few things; (1) you may have a bad thermostat, if its stuck in the closed position, it would cause your car to overheat; (2) not getting heat inside the car and the temp gauge is reading higher than normal suggests that an air pocket is trapped in your cooling system, and it needs to be bled. The small rubber hose coming off of the metal pipe is your throttle body coolant bypass hose. I think the purpose of that is to send a little heat to the throttle to prevent icing during cold weather (kind of like the old caburetor preheat hose). Not replacing the A/C condensor would not affect your cooling system. Hopefully, the bubbling in your reservoir is because of a stuck thermostat and not because of a blown head gasket.