ORM could be considered a mini framework, but I think of it as a helper class for PHP objects.
What does ORM do?
ORM allows you to easily communicate between PHP and a Database, particularly a MySQL database.
It allows for rapid development and removes any confusion and error that may occur in PHP while trying to interact with a database, because you will no longer have to write out SQL Querries which are often overly redundant.
How do I use it?
You can start by reading this mini tutorial / presentation I created http://logichappens.com/ORM%20Example/
It still needs some more work, but it should be enough to get you started.
Where Can I Git it?
You can also submit any bugs, or requests that you may have about the project on it’s github homepage.