We have a requirement as follows. An owner of a site has set up an alert for at least 50 users. They now want to run some sort of query and/or report that will allow them to monitor that alert. They want to be able to see who is subscribed to that alert and ideally remove them if they have moved to another dept etc. and no longer need alert set. Just seeing who is subscribed to the alert will go a long way. They are indicating that the subscription feature in SP 2001 allowed for this. The alert subscription could be handled as a group rather than individually.
It is my understanding that OOTB this is not possible. Once an alert is assigned to a number of users, that one user can only administer this alert from that point forward. I also know that an owner can delete alerts that are set for individuals.