CMS for small time web developer

Revision 1
I'm a student me and my friend started doing websites but need some form of keeping track. I need a simple CRM thats free and will run on php on my godaddy account.

It also needs some form of subscription tracking so when someones hosting expires so i can bill them again.

I also need to share customer registrar accounts, passwords and customer details so we can collaborate.

I have spent ages trying to find one but i can't an actual application on my host. It just needs to be setup like joomla or wordpress.

I would be willing to make a mySQL database if anyone would make me a PHP interface.