Gazpacho and update-manager

[Thomas Beckett]

im not sure if this is for devel or users list so im posting here to be safe :)
Im using Gazpacho to build my glade interfaces whilst I learn Gnome
Python programming. I got the sources to update-manager as I thought
it was a nice little app to study but when trying to open the
update-manager.glade the treelist component doesnt show (at least i
think that's the problem). When I try the
gnome-software-properties.glade nothing happens at all, but i also
cant cancel the load dialog - except by clicking the x.

both glade files load fine in Glade2.

Am I doing something silly??

Tom
-- 

Q: How many freudians does it take to change a lightbulb?
A: Two - one to change the bulb - the other to hold the penis...

.... I mean ladder!!!