There is a configured ready to use PearPC+MacOSX Tiger configuration, but explaining how to get it here would be, I'm afraid, against forum rules. PM me or , better still, email me and I'll give proper details.
Also, you might not know this, but PearPC is
very very slow. The mac machine is virtually unusable on it, I could use it only to view how each thing looked so I could "emulate" that on XP (even looking at stuff was painfully slow), so you might want to consider other options. Again, PM me and I'll tell you alternatives. Do not discuss this openly since it
is illegal whether or not you own a copy of Leopard (since this way other people get to learn how to steal,
)