Piracy seems to be the working theory:

http://www.heraldsun.news.com.au/common/story_page/0,5478,5857411%255E662,00.htm\
l

Interestingly, the captain and first mate's cell phones continue to work. The
daughter of one of the crewmen reported hearing Karaoke music in the background
when she called one of them:

http://www.news24.com/News24/World/0,6119,2-10_1308695,00.html

The piracy theory has enough cachet that the Taiwanese government has issued a
piracy warning:

http://www.taipeitimes.com/News/taiwan/archives/2003/01/19/191556

No word on the crew yet that I've been able to discover.

Sean