One year ago I replaced the thermostat and compressor and had freeon put in. now ac unit aoutside is working but no air what so ever coming through vents. What could be my problem??

Is your blower in your furnace running? Do you see any ice around the refrigerant lines? Is you filter clean?

No ice around the lines and the filter is clean, I keep it changed onece a month. If you could could you explain in detail how to get to my furance blower, I am a single mom and I really don't know anything about this problem but I can't afford to put any more money into it. I can probably find a blower if I need to. So how do I check my blower?