Recover from Forgotten password of roo

hi ,
          I am playing around with honeywall for the past few months.
          but, now I have forgotten the password of roo ( only for the 
web interface) , which need to access the web interface

          https://IP/walleye.pl

          I have access to the machine using default account roo & root.

          could you please someone give me direction to get arround this 
trouble.

thanks in advance

Rajeevan