They do loadsa chips and cater for most cars, but as they do so many the time they spend on each car is minimal.
Best bet is fine a Civic owners club - there should be someone out there who tunes these cars day in day out, and will do an ECU chip that has only been developed on your car
If you find another Civic owner that has a chip then I know someone who has an Eprom copier and can make the chip for you for next to nothing. I'll have to send the chip away though as he lives down south. He's doing one for me.