It was time to upgrade from WP2.0 to WP2.3 early. Because of the low version of PHP and MySQL of the webhost, I upgraded it from Nov 20. Since I have moved my host from the older version one to the new one, I can update my database. But there are some difficulties: latin1 as character set to utf8, which would be solved first. I used the phpAdmin on the host to dump the data, and then use UltraEdit to trans-save to utf8 characterset. There is a still problem: ELA is not very compatible with 3k2redux klein theme, so it doesnot work. I have used the ELA patched version. I keep trying.
Nov 23, 2007: The reason of the 'Archives' page not showing anything is that the 'postmeta' of that page is not using the 'page-archives.php' template. Modifying the value of the page's postmeta from 'default' to 'page-archives.php' can solve it.