In SQL 2k5 (not 2000) you should run sp_updatestats after this job and it will update only statistics that are needed.

It doesn't look like the @activeconnectionsindb variable is populated in this stored procedure. For example, I have an instance running Enterprise edition and set online= 0.... This script makes it seem like it should try and rebuild online anyways but since @activeconnectionsindb is not populated, it just rebuilds them as normal offline.