Finally, after several months, I was able to install Mac OS X Panther 10.3 on pearpc 0.3.1 (I transfered it to pearpc 0.4pre)
Wei-Meng's manual contains some mistakes. You have to remove the line 13 and 15 from your configuration file (otherwise, the mouse won't work), the screen size (emulator) must be 800x600 and so that pearpc won't crash, I reccomend you to use 0.3.1 to install mac os x (after, you can run your conf. file in 0.4, if you want. (otherwise, the mouse won't work).