Hey ok i did the front seats swap and the are awesome. Basically all you need to do is switch the rails from your civic or crx and you can only use some of the original holes for the new seats. Check out
www.4thgenerationcivic.com and check out the how to section the tell you how to do the swap. I followed their instructions and they look great.
Currently im in the process of redoing my interior to black leather. Ive already swaped an integra conole the whole center upper console. Ex AC controls, radio, etc. which was really hard and you have to modify and cut your counsole and everything but it looks really awesome.
Oh yeah also i have started on the rear seat conversion to the 94+ integra seats. I have heard it can be done. I havent got a chance to finish it but i am going to this weekend.
Ill tell you guys later ow it worked.
Hope this all helps.