To see the graphics, ctrl click iTunes->show package contents/ Contents/ Resources-> iTunes.rsrc, Click once on the file and hit command + D. Drag iTunes copy.rsrc to the desktop. While still in the resources folder, open the folder titled English.lproj. Highlight the “Localized.rsrc” file and hit Command + D and drag Localizedcopy.rsrc to the desktop. Next, download the Resorcerer 2.4.1 Demo (Or any other Resource viewing App) . In the application, locate the iTunescopy.rsrc and Localizedcopy.rsrc files now on your dektop and use the ID #s in my picture to locate them in Resorcerer. Hope that helps. Link.
HOW TO – More iTunes 4.9 Hacking