I installed the beta DPM plugins onto scotgrid-gla and UKI-SCOTGRID-GLASGOW today. My instructions were really clear ;-)

Two minor problems:

1. On UKI-SCOTGRID-GLASGOW the DPMINFO user was added with a new style MySQL password, which is not supported by the SL3 version of perl-DBI. I had to rewrite the password hash using the old_password() function.
   
2. I edited the /opt/lcg/var/gip/plugin/lcg-info-dynamic-se with emacs, which left an editor backup file. Unfortunately the /opt/lcg/bin/lcg-info-generic master script will run editor backup files in the plugin directory, so I had two entries generated by plugins, both of which were published in the BDII. Deleting the backup files and restarting MDS cured the problem.