Ha. I have finally got my Serendipity Weblog configured correctly. I used to have problems with the blog title containing Chinese characters. I needed to hack the code in order to display the characters correctly.
It just ticked my mind this morning that I can change the charset to UTF-8. After the change, everything seems to work perfectly so far, including the RSS feeding.
Dixon was telling me that b2evolution weblog is better. But I am happy with Serendipity. The layout is just what I wanted. Simple and not crowded with unwanted options.
I am going to stay with this for a while. The only problem that I have now is with the HTMLArea. It is eating up all my linefeeds. Hopefully it will be resolved in the subsequent releases.