Since the re-org of Pinpoint, my favourite site map editor (the one written in Silverlight by the Microsoft Dynamics Team) has dissapeared.
It used to be here: http://dynamics.pinpoint.microsoft.com/en-us/applications/microsoft-dynamics-crm-sitemap-editor-12884928049
In case you are also looking for it, I've put a copy here:
SiteMapEditormanaged.zip.cab (1.04 mb)
If I find it's new home, I'll update this post.