Thank you for contacting us Bob and I am very sorry to hear about Scott, our hearts go out to his family and loved ones.
We were able to update the email address for his BoldGrid Central account to use yours, but that dashboard will only allow you to view the license keys associated with the account or download plugins. To gain access to the actual website you will need to contact the DreamHost, the hosting provider for your website.
DreamHost is one of our partnered web hosts and they provide Premium BoldGrid licenses to all of their customers as part of their hosting packages, which seems to be how Scott was able to get our products installed on the website.
I hope the DreamHost will be able to help you gain access to the website and please let us know if there is anything else that we can do to help.