I have had a look at both your examples again, and I see your problem. The 62x62 images are being stretched to 92x92.
The gallery that is currently on both your pages is the 'Ribbon + Lightbox for PowerStore' gallery, so that the page you would need to have made the original changes to would need to have been the index page in the 'Ribbon + Lightbox for PowerStore' gallery folder. Can you confirm that that is the index page we are working with? (I have been working with the 'Ribbon & Lightbox' gallery, myself).