Need social friend invite script for codeiginiter for existing project

Hi, I need friend inviter script for viral marketing where user can invite their friends from following sourcee. 1. Manualy - user will manually enter email addresses and there will be email body and subject that user can change and send it to email addresses entered. For example. on [login to view URL], check "Didn't find who you were looking for?" section. 2. facebook - Friends Inviter based on the Facebook Graph API. I need exactly like [login to view URL] 3. twitter - use twitter api to invite friends 3. Gmail, Hotmail, Rediffmail, Yahoo - use respecitve apis to get extract friends email addresses and send an email. User will have option to select all friends or selected friends to send an email. Also user should be presented with predefined subject and body with option to change. Refer [login to view URL] to understand requirements When email is sent, there should be entry in db_friend_invitations for every invitation sent by user for reporting purpose. The script should also check that if email addresses of friend is already exists in db_users table or not. If user already member of our website , then it should display in the list and user cannot select that email address. This script be implemented in codeigniter framework and it should be implemented as library in codeigniter. You will need to be accurate and work based on a time you promise for delivery. I need this script within 7 days after start of project If you already have similar script, I can take that as well and you can add additional functionalities as per my requirements. you can also refer http://openinviter.com.