Billing invoicing system

We are looking for a invoicing and billing system where we can bill our customers on recurring or onetime basis. It will be similar to other recurring billing software available on net. In short we require the following features 1. Invoice customer on pre-set interval 2. Compatibility with paypal or manula payment entry 3. Automatic invoice creation and email reminder 4. Payment summary 5. Customer summary We would like to have somethign similar like [login to view URL] We dont need as much as option as in blesta we will need compatibility with paypal only. We should have the provision to run the same application for multiple companies , we mean to say that we should be able to offer hosted billing service This should be a simple task who understand billing . Please ask us nay questions and we would be happy to answer in details. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). * * *This broadcast message was sent to all bidders on Friday Mar 21, 2008 4:51:39 PM: Additional features requested. Please review and let me know if you can still proceed. ## Platform PHP Mysql