Chris,
When you are at the CSR support site you need to create a login for yourself, you can then browse the site and get the Bluesuite tools, with this comes the DFUWizard which allows you to perform the download.
The original Blue creation updater had code which was not ours hence we cannot hand it out but the DFU wizard will do what you want. I have had customers recently (in the last few weeks) get the tool and upgrade the firmware on their units.
Regards
Matt