Is there any program that can access the wiki page
files directly and
extract them putting them onto the new wiki site? Would want to save this
way as a sort of last resort due to the time and energy involved with it.
If you
really want to go this route, see
http://www.mediawiki.org/wiki/Manual:Database_layout and
http://www.mediawiki.org/wiki/Manual:Page_table
But as this is a relational database with lots of interdependencies this might not be a
feasible way to go.
You can use phpMyAdmin (
http://www.phpmyadmin.net ) for direct manipulation of database
tables.