Gina and Credential Provider Guru(repost)

I have a custom Gina for XP and a custom Credential Provider for Vista. Looking for an experienced coder who has significant experience in creating these for XP, Vista, Windows 7. a) I presume a Vista credential provider will work on Windows 7 ? b) I have a Gina for XP. It works for the most part. i) check and fix so it works across networked PC's ii) fix the Ctr Alt Del function. c) I have a credential provider for Vista i) check and fix so it works also on Win7 across networked PC's d) Assist with integration into my VB app.