I'm in the process of doing some upgrades and maintenance to the site. I've just upgraded to Movable Type 3.121, which went pretty well. Some nice new functionality, and I'm glad it was available in a free version for people like me who only have one weblog with one author and don't post all that often.
Next up is converting from Berkeley DB to MySQL. I actually tried this before I upgraded, but it keeps crapping out on me (I get this error, which I'm sure is a host thing, but they have yet to get back to me). Hopefully I'll get that resolved in the next few days, as I'm told that MySQL is much better in terms of performance.
All of which is to say that you might experience some wierdness in comments and whatnot (wierdness as in not working, not people like myself making strange comments). Other site maintenance is afoot as well (believe it or not, this site is more than just a weblog), so keep an eye out...
Update 10.26.04: Still no luck with converting to MySQL. I may have to stick with Berkeley for the time being. Anyway, comments were down for a good portion of the day today, and may be going down again soon. Also, for now, comments need to be approved before they show up. Sorry for any inconvenience.