Debug Autoresponder System

I'm looking for an expert in PHP & MySQL. I have a autoresponder system done but it has bugs problem. This autoresponder has an admin that manages & create users. 1)The sequential message doesn't work. A scheduling problem. It also has small bug here and there. 2)I need a forgot password module for user who forgot their passwords. 3)I also require the provider to add in my new graphic interface to replace the existing GUI. The provider MUST be responsive and fast in their work. Please post your bid, no generic message please. I shall send my url of the application and discuss further thru pm.