Just saw this pop up in my logs from Google exercising all the links.
It looks like it followed the List All Versions link from: http://engineer.openguides.org/?id=Brogo_Dam;version=0;diffversion=1
Looks to me like some accidental barewords in the code.
==> /var/log/apache/error.log <== [Wed Dec 22 13:51:54 2004] wiki.cgi: This is the first version at /usr/lib/cgi-bin/openguides/wiki.cgi line 57
==> /var/log/apache/access.log <== crawl-66-249-66-49.googlebot.com - - [22/Dec/2004:13:51:54 +0000] "GET /touristengineer/wiki.cgi?action=list_all_versions;id=Brogo_Dam HTTP/1.1" 200 461 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
I'm still running 0.45 here, but managed to get the same error on Oxford at: http://www.ox.compsoc.net/oxfordguide/?action=list_all_versions;id=Bar_Baby_...