[u'ERROR with transaction check vs depsolve:', 'httpd-mmn = 20051115 is needed by (installed) mod_auth_mysql-1:3.0.0-12.fc14.x86_64',
You have mod_auth_mysql package installed, but this package has been removed from the distribution long time ago. Therefore it can't be updated and is blocking httpd update. Solution: remove mod_auth_mysql and try updating httpd again. I'm closing this bug as NOTABUG.