I've been trying to find info on this spider. It was identified as Iron in my report but no UA in the raw logs. It did a real deep crawl and seemed not to have any problem with dynamic pages. Looks like it came in through my ODP listing.
164.166.243.213 - - [15/Jun/2002:10:22:10 -0600] "GET /(edited) HTTP/1.0" 200 13878 "(edited)" "Mozilla/4.0 (compatible; MSIE 5.5; Windows 95; Calgary Board of Education Open Environment)"