I've just reflashed the ROM with OZ. The thing flashes nicely and the 'version List' from the dialog gives me the following values:
ROM C.S: c675 (this is marked with red)
ZIMAGE: 20040803 612a
ROMDISK: 20040803 3b9f
Everything seems to be in order, except... It still won't boot. Anyone got some idea to why this is happening?