I've just tested this with firefox 3.5 on vista on my wife's computer and via virtualbox on XP, also with the latest version of firefox. Everything worked fine both times. The link to the score is below the tekst at http://home.zonnet.nl/b.alink/new.htm. Hope this works.
Glad you like it. You're right, it is a simplification. I've got the piece on a CD called "Rio das Valsas" and he's really playing a lot more notes than are in my arrangement or in the one on brazil-on-guitar. I've changed some things to get it nearer to his recording, but it's still a lot simpler.