My bad - looks like you already got it past this point.

1st off, get a book or just print this out...

http://www.rivergate5speed.com/transmission_book_300dpi.pdf

http://www.rivergate5speed.com/desc_of_trans.html

secondly, get a digital camera & take lots of pic's, thirdly dismantle in a seriously orderly fashion, this is what I did...



these are the internal forks that the shifter rod has to slot into, the trick I seem to remember is the internal ones need to be aligned perfectly for the shift rod to fall into the slot when installing the tail housing





print out the manual & be systematic otherwise there's a 99% chance you'll f*** it up!

good luck.