Various sites have information on developing films. Basically, you need a changing bag, film tank and spiral, and chemicals.(posted 9284 days ago)For contact prints, you need a sheet of glass, photo paper, processing trays, a white-light source, safelights and a darkroom. Ideally, the light source should be small, and low power. Many people have rigged up electric lighting for this. Conventional room lighting is usually too bright, and throws the light all over the room. An enlarger is an excellent light source for contacts, and cheap enlargers with cheap lenses are just as good as expensive ones. In the current state of the market, you can probably find a second-hand one for $20 or so.
Someone must have a web page that describes making contact prints, but I can't think of any.