Now I no longer work for Symantec, I'm allowed to be even badder than when I was working for them ;-)  Badder in the sense of running things that aren't 'quite' supported.. yet.  To that end I just spent a little while this morning installing the following combination:

Windows 7 x86

Office 2013 RTM

Enterprise Vault Outlook Add-in from 10.0.2

Here is what I had before hand:

And yes, that's right, it's on a Virtual Machine.

I then did the installation of Office 2013, followed by activation, and then the Enterprise Vault Outlook Add-in.  Here is what I had afterwards:

Then the big question..  DID IT WORK?

Well yes..  I can see an entry in the ribbon, and I can open archived items:

I'm not saying that you should do this right now, in your production environment - but at least if you're tinkering yourself, you know that there is an element of chance of success!