JJ called up to report an access problem, which we eventually narrowed down to what looks like a rogue ACL:

• mapoflondon.uvic.ca is accessible from everywhere.
• The admin interface (lettuce port 8888) is not accessible from UVic WIFI or from wired connections in the English dept, but it IS accessible from our office, and from outside UVic (e.g. 3g phones).

I've put in a ticket to sysadmin -- waiting for responses.