rob,
I just had a look at your BE and notice your root pid starts with id=27 instead of id=1. This usually occurs if the .t3d import is done over an existing TYPO3 installation with existing pids in the database.
Try a fresh install and a fresh database with no existing database tables. This is what you should see. It is very important that these page ids be in this order or nothing will work including the extensions.
New TYPO3 site
* Zen Wireframe id=1
o Home id=14
o Member Demo id=13
o Registration Demo id=12
o Contact Demo id=11
o Nested Content Elements id=10
o About Zen Wireframe id=9
o Disclaimer id=8
o Tip a Friend id=7
o search id=6
o login id=5
o users id=4
o contact form id=3
o container templates id=2
Regards,
Greg
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Mediatech Consulting, Inc.
web: http://www.mediatech.net
Phone : +1 (760) 525-1770 . Fax: +1 (760) 542-1990