Adobe have updated the pages referred to above to point to ADE 4.0, but the original link to ADE 1.7.2 is still active:
http://download.macromedia.com/pub/d...itions_172.exe
I checked and the downloaded file matches the one I downloaded over two years ago. MD5SUM is 689a47d86e2a22922d5d972e7fade6c2 digitaleditions_172.exe (5146031 bytes)
(Edit: This file, just with a different name, is also at
http://kb2.adobe.com/cps/403/kb40305...ents/setup.exe)