To register and apply for the third batch here is the link http://www.pup.edu.ph/iApply/PUPCET.aspx#
For applicants of first and second batch the result and how to claim your e-permit is available through the links below.
PUP iApply: Claim your PUPCET ePermit PUP iApply: View and print your Payment Voucher
PUPCET 2013 for PUP Sta. Mesa: Result and Online Confirmation
PUPCET 2013 for PUP Branches and Campuses: Result and Online Confirmation