Well that's a big bummer. This was 16 years ago, so obviously back then it didn't occur to me to keep every installer for every release of OD, I only kept the latest one. I renewed my subscription just now hoping I can access the OD 2005 installer, since it's still listed in my account, but that did not work. Is there no other way to get this installer now?
I was able to download WindowBlinds 4.6 Enhanced from my account just now so you obviously have those legacy installers somewhere.
I created a support ticket SSN-12323 as you asked. Thank you.