I found the below offer on VUE's website (http://www.pearsonvue.com/2009/pvtc/september.html#vmware)
Problem is, I've emailed vmware for the voucher code but no response and I want to take the exam next week. Hoping someone from vmware is reading this and I'm guessing the voucher code will be generic for everyone so surely they can just post it??
thanks
VMware
VMware Offers IT Professionals an Opportunity to "Upgrade" Their Certification
In order to promote their new VCP4 certification, VMware is allowing participating candidates who fail a VMware Certified Professional on vSphereTM 4 exam (exam code - VCP410) to have a free re-take. However, in order to participate in this offer, candidates must register for their first (full-priced) VCP4 exam using the unique voucher code sent to them by VMware. This promotion launches on September 30, 2009, and both full-priced and free re-take exams must be scheduled and taken by December 31, 2009.
If a candidate has questions related to this offer; please advise them to contact VMware at certification@vmware.com. For further promotion details, please visit PearsonVUE.com/VMware/Upgrade.