I have no idea. They were on his my space page until FReepers found it and he took it down immediately. Could be ‘98 or maybe the date was just wrong on his camera. Some people don’t make sure the camera date is correct.
UPDATE! (May, 2010): Both the original and cache version of Jackson's MySpace page have been deleted. However, the following linked Washington Times article has several screen captures of the original page, although they apparently don't include any of them waving the guns.
**UPDATE 2! (May, 2010): Now even the Washington Times article has been deleted. Perhaps the WT delete all articles that are months old?
Washington Times, July 30, 2009...
"Disturbing content on New Black Panther's MySpace page":
http://www.washingtontimes.com/weblogs/watercooler/2009/jul/30/disturbing-content-new-black-panthers-myspace-page/
In any case, here is a link to some more recent Washington Times articles on the New Black Panther Party "voter intimidation" case:
http://www.washingtontimes.com/search/?cx=015385541671335030271%3Anfb7f1nj88q&cof=FORID%3A11&ie=UTF-8&q=jerry+jackson&sa=Search+TWT&siteurl=www.washingtontimes.com%2Fsearch%2F%3Fcx%3D015385541671335030271%253Anfb7f1nj88q%26cof%3DFORID%253A11%26ie%3DUTF-8%26q%3Djerry%2Bjackson%26sa%3DSearch%2BTWT#1757
I think those pictures are more recent. Because he has a poster saying “Free the Jena 6” and that was just a couple of years ago.