Newbie needs help

the picture below is of a site i am trying to work on … i have links to PDF files on this site, i want a user to be able to put a check in the box of the form they need and then enter thier e-mail address and the link(s) to that form(s) they checked off are sent to them… as you can see i have started a basic concept of what i want in frontpage…but that’s all it is…links, text and buttons…how do i begin to link all these functions together? thanks!