Do you have someone testing who actually depends on a screen reader?
It should be possible to tab into links but I'm not sure about tabbing into paragraphs, doesn't seem like that should be needed for reading the page. Do you get different results testing with major news sites or other sites known to be accessible to screen readers. I would think there are probably keyboard commands to initiate various things within the screen reader.
We are very interested in anything we can do to help insure that mojoPortal is accessible and we would love to be able to help if you have actual testers who depend on assistive technology who could provide specific examples of specific problems as well as comparable pages that do work for them. Ultimately we would need to find out what exactly in the html is not accessible and what the actual html markup is vs the recommended markup.
fyi, please don't reply to the forum notification email, please click the link in the email to get back to this thread to reply in the forums.
Hope we can be of some help,