Cole Deines has not yet updated their profile :(
I just joined Vimeo Plus, and I am not seeing the option for a custom album URL. Yet 2 years ago the staff said they're working on it. Are you still working on it? Is it here and I missed it? Or did you drop this feature?
As a PRO member I would try using Portfolios as you can have much more customization options, a custom domain, and CSS control.