Cannot load /etc/httpd/modules/mod_dav_svn.so into server: /etc/httpd/modules/mod_dav_svn.so: undefined symbol: dav_xml_get_cdata
With the default httpd.conf? I can't reproduce with mod_dav_svn-0.29.0-1 httpd-2.0.47-6 on a Shrike-based system. This should only happen if you've commented out LoadModule dav_module modules/mod_dav.so in httpd.conf, in which case it is expected behaviour.
Hm, will have to check on a more default install.
Presume this was a config problem then, I'll close this.