help problem with processing and arduino mega

Using Arduino Interfacing w/ Software on the Computer
1

Hi,

I'm triyng to menage to get work an arduino mega 2560 with the arduino library for processing.

first problem: the arduinomega library downloaded here Arduino Playground - HomePage has the library .jar file missing, then processing can't find it
I tried to put the file from the standard arduino library and it works except that it can't drive the digital out pins from the 22 to the 53 which I need them.
it works perfectly in a arduino UNO and Duemilanove
maybe it could be just a matter of firmdata, I really don't know

any suggestion?

thanks a lot