http://newzealand.usembassy.gov/non-immigrant_visas.html
”A VWP traveler who has a valid,
machine-readable passport with a digital photograph does not need a new e-Passport until the existing passport expires, if the digital photograph passport was issued before October 26, 2006.”
"A VWP traveler with a valid,
machine-readable passport without a digital photograph does not need a new e-Passport until the existing one expires, if the machine-readable passport was issued before October 26, 2005"
How can you tell yours is a e-Passport or has digital photo:
http://www.cbp.gov/linkhandler/cgov/travel/id_visa/business_pleasure/vwp/vwp_timeline.ctt/vwp_timeline.pdf
