Today I learned something old!  I was manually archiving some items on my Outlook 2007 Enterprise Vault 10.0.1 client, and wondering for the life of my why I wasn't seeing the 'proper' archiving dialog.  I was seeing this:

Which is odd, because I see this in my client trace:

Yes, silly me..  I forgot that this was a reasonably new install of Enterprise Vault 9.0.3 Server, and therefore I hadn't installed the hotfix that is needed:

http://www.symantec.com/business/support/index?page=content&id=TECH175941

Now when I manually archive an item, I see:

For more on this, see my other post where I call out the different fixes.