On the transmission there are 2 bolts, 1's a drain bolt 1's a fill bolt.
Heres a link to a picture of what your gona be looking for:
http://www.1993-honda-civic.com/images/08/july/tranny_oil_drain.jpg
Heres a forum posting about it:
crx how to change tranny fluid - Honda-Tech
And heres a clutch install just for a good refrence:
Honda Accord - Clutch Install - Tech - Super Street
You can stick a rachet inside the bolt, so they're pretty easy to identify. There are a few ways to refill the transmission , I think VSS and back up light switch are easier to fill from but if in question just stick to the standard location to fill the tranny back up: the fill plug. It should hold 2 quarts.
I would use 1 of these 3 tranny fluids:
GM/Penzoil synchromesh
Honda Manual Transmission fluid
Amsoil MTF synchromesh.
10w30 will also work but it doesn't have the pressure additives that transmission fluid does. It should only be used if you absolutely have to.
The fluid must be added with the car on level ground should you add through the fill plug.