PATCH: Some GUI changes

[Natasha S. <nat...@fo...>]

Hiya,

I've added a list view and changed the tree into a labelled tree. 
I implemented the 2 view using a notebook to switch between them - 
don't know if this is the 'correct' way of doing things. 
This code is not very well tested, so please email me if it is
extremely broken.

Regards,

Natasha
-- 
Natasha Sainty        nat...@fo...
Foresight (Europe) Ltd    http://www.foresight.co.uk
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