Good Morning NĂºria:
If you are merely trying to enable the login mechanism for your
UCSC browser installation, you might have luck with the alternative
LDAP login work-around:
http://genomewiki.ucsc.edu/index.php/Image:UcscLDAPCookie.txt
This would save you the trouble of trying to install our older
version of MediaWiki with corresponding UCSC patches.
--Hiram