The order of the photos in an Album feed does not match the website photo order. I tried to use photo.position but it too was in the same order as the feed list, and not the visible order as on the website. Had to recreate the album from NEW to fix it. This is NOT a good solution for Google users who want to use other apps to show pictures in their Google Album. Especially those with large albums who've spent hours ordering things and don't want to waste time fixing it by rework. I've saved the bad problem example in my Albums named MP-SlideShow-BAD for your review.
This is what Google API doc says that is incorrect: "*Note*: The entries in a feed are ordered based upon the display order on the web site." https://developers.google.com/picasa-web/docs/2.0/developers_guide_protocol?csw=1#Get_Photo_Feed_Manual -- You received this message because you are subscribed to the Google Groups "Google Picasa Web Albums API" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-picasa-data-api+unsubscr...@googlegroups.com. To post to this group, send email to google-picasa-data-api@googlegroups.com. Visit this group at https://groups.google.com/group/google-picasa-data-api. For more options, visit https://groups.google.com/d/optout.