After logging in to your account (https://www2.pearsonvue.com/Dispatcher?application=Login&action=actStartApp&v=W2L&clientCode=VMWARE,....)
you should find it when you click the "Schedule Exam" button.
However, I'm not sure whether it shows up if you are not already a VMware Certified Professional on vSphere 5 (VCP5), which is a requirement for this certification (see http://mylearn.vmware.com/mgrReg/plan.cfm?plan=28343&ui=www_cert)
André