build social networking site with elgg

i have a website of people who ride motorcycles - mostly motocross. i want to make it an elgg website for social networking. there are four main user types which will need to be configured motocross riders motocross tracks motocross dealers motocross sponsors each user type will have slightly different sign-up/registration requirements each user will have a slightly different page based on the registration information provided advertising space will need to be alloted for the site. we will need to import current user information from a csv design requirements will not be part of this project. validation for user sign-up will need to be done clientside with something like ajax so that users know if there is an error based information that they enter into a specific field. ## Deliverables i tried to have this done 100% from scratch but after a year the developers still have trouble getting the basics working of validation - here is the link? to where they are - this is to be used as a reference <[login to view URL]>