I'm sorry that I can't answer you about xwords at all.
But, if you want the feature of autolink etc, try pukiwikiMod !
PukiwikiMod is a great module made by nao-pon.
http://hypweb.net/xoops/modules/mydownloads/http://cvs.sourceforge.jp/cgi-bin/viewcvs.cgi/pukiwikimod/pukiwiki.tar.gz?only_with_tag=MAIN&...1&2: it has english language files.
3:
http://hypweb.net/xoops/modules/contact/4: it has.