I have tried running the plug-in on localhost, and it appears to be timing-out on all of the links to itself (localhost):
# Link last checked : October 28, 2010
# HTTP code : 10060
# Response time : 30.005 seconds
# Final URL : http://localhost/wp-content/themes/example/images/example.jpg (also pages like: http://localhost/index.php/example/)
# Redirect count : 0
# Instance count : 1
Could it be because it doesn't like "localhost"? Does a local URL have to be fully-formed?
I've disabled plug-ins except for "advertising manager" and "fold page list." I've used the 0.9.7.1 version and 0.9.4. I haven't used this plug-in before.