Here is a link to the document I've made with all the d15b 3 stage vtec information.
****Disclaimer****
I do not claim this is original content and have not given credit to sources. This is all information that can be found on the internet in the public domain, including images. It takes quite a bit of digging to pull all this up. Its meant to be a convenience.
If anyone would like to revise this document and send me the revision I would be happy to update the posted version.
Warning somewhat sloppy, but good info.
Info About D15B 3 stage vtec aka d15b.doc - Windows Live