Your'e in luck, 92 civics came pre-wired for vtec, buy you will still have to wire up IAB, and maybe knock sensor.
We just swapped a b18c in a civic that previously had a B18b, the throttle cable bracket was in the wrong orientation for the LS throttle cable, we fabricated something.
I think you need one different mount, from a B16 del sol, or civic SI, search for that elsewhere, good luck! :thumbup:
Here are some links, the swap stories appear to be ridiculously under-informitive:
http://tech.hybridgarage.com/tech/5gtech/index.html
The site seems to think that you don't need to change the mounts... I dunno do the research.
-PHiZ