Go to Stardock.com/store and login. Then go to your account. It should tell you whether or not you have WindowBlinds available.
As i suspected Uvah, ODU is not listed under my account, with the license expired it's no longer available to me. worth a look though. (i suspect WB would not have been listed separately anyway, since it was not purchased but ODU was.)
Zubaz, (or anyone else that knows) listed under my account is something called Wincustomize Customer Loyalty that when clicked gives me an add to account button.
Any info on what this is please?