I have a 99 honda that when you turn the heater on only the outside vents are blowing air, the 2 inside vents no air comes out..what is the problem with this and its not the fuses, I checked them already and also none of the lights connected with the heater parts isn't working...any onfo would be great

I had a similar problem on my 2000 honda and while my fix might not work for you I would at least check a few things.

First off depending on the blower setting (such as defrost, feet, mix, etc) those middle vents will not turn on. In defrost mode the outside vents will work and not the inside ones. (sorry probably obvious)

In my car I found the the little plastic diverter in the vent had managed to detach from its track and was permanently closed, so when I opened up the vent it was just a matter of snapping that piece back into its track and then it worked.

The only other thing I would check would be to see if the air 'feed' pipe (or whatever you call it) is still connected, in my old toyota it was above the passengers side foot area (kinda behind the glovebox) at one point it had slipped off its connection and just needed to be re-seated then I put a pipe clamp on it.

If it does not seem to the an electrical issue then it is likely going to be some kind of mechanical failure. I would also consider checking your air filter under your hood and make sure its clean. These systems are primarily mechanical and fairly simple on Hondas (unlike bmw, audi etc...)
hope this helps :-/