[Mailman-Users] admin link wrong when migrating to new server

[admin2]

Hi there,

I am migrating from a freeBSD machine to an ubuntu machine and the ports 
have different default locations and so on.

on the ubuntu machine I find that mailman resides in

/var/lib/mailman

the cgi-bin is /var/lib/mailman/cgi-bin

the link from the main page to the admin page is messed up for every 
virtual site.  Is there a configuration place to fix this or what is the 
appropriate way to fix the problem?

so if I place the URL  http://lists.domain.com
in my browser I am redirected to http://lists.domain.com/mailman/listinfo/

then I click the "the list admin overview page" and get sent to the 
wrong link that results in a page not found error:
http://lists.domain.com/cgi-bin/mailman/admin

when the link should be:
http://lists.domain.com/mailman/admin

help please.

Cheers,

Noah