the current setup with trac is not very good because:
o) end users can only enter new tickets but cannot annotate them
o) end users do not get notifications when their tickets are updated
o) there is no way for end users to subcribe to existing tickets to track their activity
o) end users are not allowed to attach files on tickets
o) due to the way trac is setup, there's no way for end users to register for accounts
there are few enough tickets in trac that it would not be much of a problem to move them to mantis. there are only 35 open tickets at the moment.
and yes, i'll volunteer to set up mantis and transfer all existing tickets.