Navbar application tab and page

[STAlphaAdm]

I am looking to add a tab to my forum that will allow a registered user to click on it, and then be taken to a page, that has my same theme, and fill out an application to be considered for full membership.
I would like to have this form present 5-10 questions to the applicant and when finished, that person hits submit and it would email out to the admin.

I don't know where to begin with this. All help is appreciated.