Installing Adobe Digital Editions

I checked the ADE advice from addres

robert.penz.name/440/howto-install-adobe-digital-editions-on-ubuntu-12-04-and-use-it-with-an-e-book-reader/

and did everything until set up. The brown boxes I never found so maybe I did not install ADE. Where I find the brown install-boxes?

I also have Adobe account and Ebscohost account. Ebsco says my book was checked out succesfully and I see it in my folder. But can't open it.

I tried to download and open Adobe's Getting started e-book. It did not open, some problem with zip. Any idea?