same problem here, got a dual boot xp / windows 7 machine.
All normal WOL settings are configured and pc wakes up when shutting down from xp. But not when shutting down from windows 7.
However, I downloaded the latest drivers from the marvell site, but that didn't solve my problem.
I got ;
win 7 64 ultimate
asus p5b deluxe mainboard with marvell 8001 and 8056 network card.
I tried with and without the setting "only allow magic packet to wake up computer", no result......