Hi. I won't try to suggest things that might make 2.0.1 work; it seems to be past hope ... as you say, problems with ADE 2.01 are endemic.
Lets see if you can get 1.7.2 working properly though.
ADE wouldn't launch automatically to accept the file "fullfillment".
Could you clarify that a bit, please?
Did you happily download the .acsm file from the library, but opening the .acsm did not open ADE?
Or did the download fail even before you got the .acsm files?
Or did ADE open the .acsm file, but then fail to download the real .epub (or .pdf) file?
How did you get the book in manually? (apart from anything else, I'm sure lots of people would like to have a book that still opens after the loan period).
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I agree that Adobe support for ADE is pretty poor.
Also, given that ebooks are likely to be used by people with very little knowledge of computers,
they have built an unbelievably awkward infrastructure that is a nightmare even for computer experts.
I feel really sorry for the people in libraries who have to help users out with this mess.