This must be the first time I've ever heard this happen on a MP3 player.
....about 3,700 5GB Zen Neeons shipped since July might have possibly been packing a W32.Wullik.B@mm payload...[link]
and read the original Japanese (translated) news article [link]
Made in Singapore?
Creative, next time, if you are using shitty WinXP machines to run your plant, make sure you at least have firewall turned on, install anti-virus ok?
Or just change to Linux or Mac.