[Zope] Need Zope promotion material

Hi there, We are going to exhibit Zope at the Internet Expo that takes place beginning of February in Zurich/Switzerland. To decorate the boot I need a high quality img file of the Zope logo (it will be printed 50x50 cm). I did ask for such a file on Zope.com. However my pledge was not answered yet. I anyone of you could point me towards such a file I would be grateful. Robert