I assume you mean the spamming in your comment section? Here are a few ways that have helped me:
1. Once the blog entry is off this main page, you can go in MT to close the comment section. That way it will keep the existing comments but preventing any future comments. I try to do this once a month at least.
2. Ask your webadmin to remove your page from googlebot indexing. That way it is less likely for spammers to find your url.
3. There is a mysql (i assume paowang mt instance is using mysql?) script that can be run to close all comments earlier than certain dates. Problem with you guys is everyone on paowang is probably using the same db instance. Unless everyone agrees to this practice, you might not be able to convince everyone to adopt this script. Since the total number of your blogs are still in a manageable size, you probably can do it manually, one at a time.
GOod luck!

Thansk Brian. I disabled the comments for all the entries older than a month. That seemed to work, for now. Let’s see if this works long term.