below modifications needed for socialengine :
1) Needed Active & Inactive users section to admin panel. So total users will divide in o two tables se_users and se_inactiveusers database tables.
2) Needed Time based cron job to search for inactive users daily and if there are any inactive users, they should go to inactive table.
3) Active and InActive actions info in 2 separate actions tables.
4) Need se_inactiveusers table for inactive users and need se_inactiveactions table for actions of inactive members.
5) If some one logged in, site will search in active users ( se_users table ) first and if they found .. site will login quickly and if they don't found in active users table, site ill search in inactive users table and if they found there ... they will automatically add to active users. And their actions also will moved to activeactions table from inactive actions table.
6) AJAX in every possible location.
Plz check the requirements posted above and bid with confidence.