newbie here with newbie question

hello all, i''ve been a honda owner for about 6 months (99 lx 4 cyl. sedan), and my auto trans is starting to act up ( slip & jerk).  i am trying to identify the trans and have found the numbers on the trans case, but all literature that refers to this model mentions baxa and /or maxa only.  can someone clear this up for me?  i''ll be doing a trans swap or getting it rebuilt soon, so if anyone has any input or advise, please chime in.

have you ever changed the fluid? what color is it?