The machine compiled listing of wiki links and the thesaurus XML dumps have been posted for enwiki 20070402.
ftp://www.wikigadugi.org/wiki/thesaurus/wikipedia-thesaurus-20070402.lex.bz2 - Machine compiled thesaurus lexicon ftp://www.wikigadugi.org/wiki/thesaurus/wikipedia-thesaurus-20070402.links.bz2 - full listing of all links within wikipedia ftp://www.wikigadugi.org/wiki/thesaurus/wikipedia-thesaurus-20070402.xml.bz2 - Machine Compiled Wikipedia Thesaurus
There were some minor issues with importDump.php with the 20070206 Thesaurus dumps. They have been corrected this release and the 20070206 runs have also been updated.
Jeff