Community driven website - like classmates.com

i want to make a community driven website - purpose is classmates finding each other. something similar to [login to view URL] (not with? so many? features as in [login to view URL], but just enough to get people registered, build their profile, be able to search a school or college, enlist a school if not available and? be able to browse list of friends through their friends.? a database? will hold all data of people registered. will prefer in frontpage or dreamweaver, but will accept any other if appropriate