Air Conditioning gone wack

I have a 1995 Ford Contour, which has been in my ownership for three years. It ran very well when I first purchased it, however slowly but surely, things have started to occure at a somewhat regular interval.
My main concern at this point is, my air conditioner. I have a definite slow leak, so I must replace the freon every so often. However, recently, I have had fuse relay trouble, at least, that is how it appears. When I reset the ignition relay, it seemed to fix the problem. However, it no longer works. I have replaced the relay, no results. I turn the air to the on position, however there is no air, there is no compressor or fan actions, no anything. ONLY SOUTHERN SUMMER SIZZLE. I have wrestled too long with the a/c to have to fork out another chunk of change. I am looking at possible costs of repair, but a solution to the problem is what I desire the most. All help is appreciated.

P.S.~hello everybody, I'm NEW:)

your a/c needs enough pressure to turn the compressor on.
this is done with high and low switches.your compressor may be seized,(noise) or the accumulator could have a leak. to find the leak, follow the a/c lines and look for road dirt sticking to the component;from oil in the system.

Im assuming its the duratec V6? Check back behind the upper intake manifold and youll see some vacuum lines for the EGR, AC, etc. Make sure all those are properly connected.