Let me prod the product manager on the docs. I believe we got a final version (finally!).
If that Windows printer isn't itself providing a Bonjour/mDNS service, our gateway won't help. I think Apple provides some sort of utility to set that up (Bonjour for Windows..) but that would have to be working first.
Lastly - with our new support portal, you don't need to share accounts. You can sign up for your own and then "linkup" with Will so that you both have the same permissions and access to cases, etc. You'll get presented those options after you sign in for the first time.