Boris Eetgerink write:
You'll probably get the answer that the MediaWiki developers don't support third-party extensions, so you'd better give it a try with the maintenance/importDump.php script first (run it from the command-line).
Good luck,
Boris
MWDumper is supported by MediaWiki. I don't know the author, but it's certainly not a "third party extension", but the recommended tool. importDump.php is too slow for using it with a full wiki dump (it renders each page).
http://www.mediawiki.org/wiki/MWDumper http://download.wikimedia.org/tools/