Invite Hotmail,gmail,aol,orkut,yahoo contacts.

i have seen lots of people have this script but i need only the working [login to view URL] those have working demo , show me asap .we dont want to develop it. We simply need an invite friends that users can input username password and be able to invite their contact list from the accounts Hotmail, Gmail, Yahoo AOL and orkut. Lowest bid and best working script wins lots of projects from us. bid fast annd only programmers who have demo else i will delete bid.