Keystation 49 And Osx Problem... Options

[ap23]

Hello
I have a new i mac g5 and an older Midiman Keystation 49 (not 49e) and Audio Midi setup doesnt recognize / see it.
Anything I might be doing wrong?
The lights /led are on on the keyboard and it used to work on another mac under os 9 so I know the keyboard is working.
FYI I checked with the M-audio site (aka midiman) and they mention this keyboard as being osx compliant, so what gives?
any help would be most most apreciated....
fyi Im running OSX 10.3.6
Thanks sooo much in advance
ap23