A domain parking account is a seperate to a support account, you will need to register for a support account if you haven't already.

Where do the advertisements on parked pages come from?
Can i use Park4Money.com DNS server and add MX entries for my domains so I can use email?
My parked pages aren’t resolving. Why?
I am already parked with another provider how do I change to Park4Money.com?
Parking your domain name

What is Park4Money.com?
Why is Park4Money.com a better choice than traditional domain parking services?
What do I get with my Park4Money.com account?
Is there sample sites I can view?
What programming skills are needed?