Screen reader only sees two of six slides

I have a slideshow ( http://www.sullivanIII.com/portfolio-slideshow ) that works fine - except in a screen reader. Only two of the 6 slides were visible in a Windows-based screen reader in IE (don't have the rest of the particulars until tomorrow

Is anyone familiar with screen readers and how jquery.cycle works (or doesn't) with them? Any potential work-arounds? A quick googling didn't find me anything.

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Thanks for any help - I just want to make the site as accessible as possible.