I think he forgot the "rules" - breaking the gallery rules. Did your picture have any artwork in it? Any copywrited material (images of the character, manga image, logos, etc)? Was it sexually suggestive/too revealing and/or not suitable for pg13 audiences? I know the rules are around here somewhere, but I'm not sure where... though Admin can point you to them easily, I'm sure (I just don't use my gallery that much).
I think your photos will be fine in photoshop; he was saying that sometimes jpegs from photoshop 6 or 7 don't upload properly, so you should resave them by choosing "save for web" (if none of the gallery rules were broken, this might be what happened) and upload them again.
[font="Franklin Gothic Medium"]~Anime North 2014 Masquerade Co-Director [Masquerade AT animenorth.com]
~ Anime North 2014 Culture Track Organizer
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