[Simon Lloyd]

You may see in your WOL Internet Seer Spider but you need to know it's full UA (here's one: Mozilla/5.0 (compatible; Atwatch-InternetSeer monitoring; MSIE 6.0; ) Gecko) so we can decipher which part if any is being blocked, Maybe this will help you get them back http://www.internetseer.com/help/faq.xtp

Just a word though, internetseer has always been just an email scraper, they trade off with "monitoring" your site or of course you can pay them to do it, either way they are archiving email addresses found on your site - still want to use 'em?

As a final word, i did mention when posting the list of bad bots (both here in the thread and the txt file) to prune out those that you want to be able to see your site, you might have like to also prune out ia_archiver, you should definitely prune out DA and custo (as should most people).