Yeah, I absolutely love the 5th gen Civic hatches. When I have the money to buy a second car, that's what I'm going to get.
Found this on my old 3rd gen Accord forum:
OBD0 to OBD1 conversion harness
Also, I'd check the 4th gen Civic forum here. I'm pretty sure someone there has an OBD0 to OBD1 guide posted or a link to one that was made.
Also:
http://www.4thgenerationcivic.com/
http://www.civic4g.com/