It appears that the problem with Akismet was due to a problem with WordPress when operating on Windows boxes. I can only assume that the reason this bug snuck through is that my configuration is an odd one. I have to run IIS for the .NET aspect, but run a PHP blogging app.
I have the problem solved and e-mailed to Matt; but I’d like to wait for his confirmation before I post it here since I had to edit a core file to WordPress.
Earlier tonight I got an e-mail from him asking me to try a newer version of Akismet, unfortunately the newer version didn’t help me because my problem was occuring before where that fix took place.
For the record, Akismet has blocked over 177 spam comments since I installed it on October 27th.
Update: Nov. 6th, 2005 @ 12:10am
I see I’m not the first to have seen this problem and found the fix for it now. This bug was added to the bug tracker for WordPress back in August.
Update: Nov. 30th, 2005 @ 5:20pm
I’ve left a comment at the bottom here which details what needs to be one to get Akismet working again.