Yep - I can't get pictures to stay - same exact problem - error message.
Then I played with the options, and now I cant see my pics as an album - only individually - DON'T click on "REBUILD THUMBNAILS" !!! - LOL
I've PM'ed Josh to let him know, but I haven't heard back from him as of yet - maybe the PM'ing isn't working correctly either. The "PREVIEW" option(before SUBMIT) is missing from there as well(but not from this screen).
(Josh is either sitting there nodding his head thinking "Yes, yes, yes - I know, I KNOW - I'm getting to it" - or - "Oh Crap - 1st I've heard of it")
I sure hope Josh is chuckling right now, or I may be in danger of having my avatar turned into Howard the Duck.