JKarl, in the same boat and I agree, the solution from PTide unfortunately doesn't work for us.
In an ideal situation, I would love to be able to pass arguements via the unattended installation to install the software, input the credentials, and effectively have it just show up on the users machine and begin backup. Maybe allowing a method of 'policies' so VEB checks in with VBR to know what it's configuration should be, including what to and not to backup. That's a pie in the sky scenario.
I understand VEB was really meant to fill the gap regarding physical servers - but we some refining, this could definitely be a power 'user' enterprise endpoint solution.