Thanks, it's one of my oldest models, made by hand, and I still really like the Deep Space Nine station! ;o) Much of the detail are just lines drawn with a pen, or by "layering" parts: I always use thicker paper (2.5x as thick as regular printer paper) for papercraft, so if you glue one piece on top of the other, you get a little bit of "depth" very easily.
Back then, I didn't have a decent photocamera, so there aren't really any instructions except from some schematics I drew on the templates, and some parts can be a bit tricky! ;o)
Yeah, this is a pretty old model already, and I didn't make step-by-step instructions back then...
I drew some schematics for some parts (they're on the part templates themselves) and for the rest, you'll have to examine the fold lines and pictures to see how you should fold and shape the parts.
It's quite a small model, so the parts are much easier to work with if you pre-shape/curve them throroughly (for the curved parts) and if you score the fold lines before folding them (for the parts with sharp folds).
If you're not sure about a certain part, try it without glue first and see if it fits the way you thought (that way if it doesn't fit, you can still easily change it if you missed a fold line or anything.
The 6 pylons are the same of course, so once you made one, the others are the same, and the same goes for the rings (if you made one, the others are the same).