"Anything from a 96 and up should work OK. They changed the design of the door roller supports in 96 and doors made previously to that can be made to work but it will take some rework of the guides and attachments.
As far as the glass there are two categories and three types. Privacy glass used prior to 93/94 was slightly lighter and different in tint, along with clear glass (lighty tinted, same as driver's door). Then there is glass that is the "pop-out" type, it has hinge plates at the top and latches at the bottom, the other is the fixed glass which is typical in cargo vans and is glued in. You can use the pop-out type (which will probably be easier to find) in a cargo van, just make sure that you get all of the hardware when you buy the glass, assuming that you pick it up from the wreckers."
That was my response on November 11th. It has all the info that you should need.
However, it sounds like you have a "cargo" style sliding door. Any year from 1996 up will work, but you will have to look at cargo vans to find that style. Cargo van windows are generally glued in. You can tell it is a glue in becuase it will have a half-round plastic border on the edge of the window that is glued into the door.
A 1996 and up passenger van will also work, but the window will most likely be a "pop-out" style, which means that it has two plastic latches on the bottom edge that latch the window closed. Passenger van windows have a hinge at the top and the latches at the bottom. When you open the window it sticks out at teh bottome. When you close it, it seals against an inside weather stripping that is pressed into the window frame. The passenger sliding door itself will work OK in your van, the window will just be different.