Looks like something is awry at Google today. Several installs of PWA + PHP are misbehaving and showing the FULL SIZE Image in a gallery as the first image, instead of the thumbnail. Here's some examples:
http://www.missoulaavalanche.org/photo-gallery/?album=2011Season
http://www.montanatimberproducts.com/product/tongue-groove/
However this gallery (not using PWA+PHP, but an older Picasa/JS integration, seems fine)
http://www.vinoture.net/photo-gallery/?albumid=5575478322952949137
Any help would be greatly appreciated...anyone know what's up?