I just installed iTunes 7 on my 450mhz G4 OS 10.3.9 Powermac. Looks like there's some things missing for Panther users, such as the one pointed out earlier: http://www.applefritter.com/node/19205
I'm also not getting an equalizer window which is very annoying. Anyone else having that problem? There's no equalizer button either, nor a visualizer button--only selections in the pulldown menus. I miss those buttons.