They removed all of them. The reason was that they (Yamaha ?) were afraid that people would loose interest to attend the promotional shows/events that are being arranged in Germany in various Music
shops by the same persons.

However, apparently Simon was fast enough to get all these and he is putting them on his "Tyrosworld forum". See
http://groups.yahoo.com/group/tyrosworld/message/317

I wrote some notes about these on the original posting on Bob Gelman's Yamaha-styles forum. You might take a look at
http://groups.yahoo.com/group/yamaha-psr-styles/message/16252

Cheers
Kari