Andrew;
If you're logged into myvmware (and I think you are to post here), you should be able to download it here; VMware vSphere 5: Private Cloud Computing, Server and Data Center Virtualization
It's just a .ova you import.
As for offsite or tape backup, I don't think vDP supports this out of the box. I think I have seen several threads and blog posts objecting to this design. I think that VMware wants you to buy vCOPs Replication licensing to handle DR type scenarios.
I'd suggest checking out the VEEAM and/or UNITRENDS solutions; they might allow better offsite or tape options.
JL