PayPal Adaptive Payment plugin Issue.

I have searched the forums and have submitted a ticket to which I'm waiting for a response. My question is; Where do I find my PayPal Api ID? This is a field required by the PayPal Adaptive Payment plugin. My research indicates that PayPal do not support Adaptive Payments any longer, is this correct and if so does Quick2Cart need updating to provide another way to split payments between the Site Owner and Store Creator?
Many thanks.