I've found a solution to those problems. If you make the ISFDB search go through Google Advanced Search, it solves them all.
This is the version I'm using at the moment:
http://www.google.com/#sclient=psy&q=Bibliography+%22{author}%22+%22{tit le}%22+site:
www.isfdb.org
It's brilliant for identifying short stories that fail on the 'Download Metadata & Covers' search.