adjust/maintain/expand crm

Hi im using a opensource crm wich has been abanded (actualy they changed license) The package is realy good, but has some errors wich need fixing and perhaps changing. perhaps some adding of functions and perhaps some rewriting. It involves google apps calander/mail and docs sync and live use. It perfoms project management including hours, mail, client info, voip integration. I think its a great piece of software but it needs some work. We are looking for a partner in this.