Just changed my alternator but something is weird

[SpikeD]

mmm ah yes, i hear that, no ac for me either, ill turn the ac or heater on an it sounds like the blower fan is just making noise an its not pushing any air into where im sitting, ontop of that the heater core started leaking coolant and so its just sitting until i can bypass the core, but id really like to get some air in the cab! (cant think of what to call the inside of the car!)