Hi, I'm desperate for some assistance.
I have had my permalinks set up with a custom structure: /%category%/%postname%/
This was working fine in WP 2.8 and 2.9. When my users had multipage articles, the url would read site/category/title/2/ for page 2, and so forth.
Since upgrading to 3.0, access to pages past the first one has vanished. The links are still there and are formed the same way, but they resolve to the first page of the article.
I tried using a different permalink structure, and multipage articles worked fine with other structures. I'm not sure why the behavior would have changed between versions, but I really do not want to change the link setup. I'm less concerned about search engine indexes than I am with all of the links in my users' posts that would need to be meticulously changed.
I did a lot of beta testing on my computer's own server, but since my home test server doesn't have htaccess support, and hence uses the default permalink structure, it never occurred to me that there could be a problem until after the upgrade.