Since the administrator is the primary contact for the entire Project Desk account, we do not give this as an option.
If you need to change the administrator's login e-mail address, we can change it for you. Just send us an e-mail containing the company name, the administrator's current e-mail address and password, as well as the e-mail address and password you would like to change it to.
Give this information on our 'contact us' page:
http://www.projectdesk.net/contactus.aspx
DeskShare - Support