I've got the same year/model. They did not come with a passengers seat arm rest that year - not even as an option. You will have to search the after-market parts suppliers for availability, or do a search on one of the Honda CR-V owners sites.
It is located in the front passenger seat back.
The ECU is under the carpet on the passenger side front seat (under the dashboard area where you rest your feet).
how to remove front passenger seat of 1996 Honda Civic EX 2 door coupe
A front passenger seat on a 2005 Honda Civic is held on by four bolts. Pull the seat back to loosen the front two. Pull the seat forward to reach the two rear bolts. Remove the seat.
the seat
check under the passenger seat
Normally the ECU is located under the passenger seat or behind the passenger kick panel.
there should be two bolts behind the passenger seat, take those out. pull the strap on the passenger seat forward and pull the seat back. after you take the passenger seat off you can see the bolts for the front seat, take them off and back the seat out of the lip.
Yes, it has a back seat.
See: http://cgi.ebay.com/ebaymotors/97-01-HONDA-CRV-CR-V-FLIP-DOWN-ARMREST-in-LEATHER-NEW_W0QQitemZ260402411612QQcmdZViewItemQQimsxZ20090501?IMSfp=TL090501121003r27647
The front seat of the car.
the front seat of the car I think.....