I "bumped" into you while searching for elucidation in the Creative forum -- replaceable battery or not, that is the question; amongst others from someone who wishes to go nowhere near an iPod and decided to try something else -- and have to confess I was quite stumped.
I have to ask, and pardon if it is too personal: what the hell are you doing in grimy, grey, violent, messy, noisy Sao Paulo (jobless, still? Sorry I can be of no help to you there) when you could still be biking in the English woods and driving your Corrado??? I am allowed to criticise, since I was born in SP and lived there until October 2004...
By the way, both your English and Portuguese are impeccable.
Edit: Plus I'm ill for some reason. I feel nauseous, and I can feel my glands are up and have the general cold aches. It feels a bit odd though, not like a normal cold.