Lots of people have asked us where they can get the 32-bit Enabler and the Macintosh Hardware System Update. As yet, they have not appeared where the net public can find them. We have received contradictory information about whether or not these programs have even been released, so as a result, our advice is to sit tight for a bit and not worry.
Smarter Parental Controls
If you've been using the parental controls options in Mac OS X to lock your child out of using a particular computer late at night, but would like to employ a more clever technique to limit Internet access, turn to MAC address filtering on an Apple base station.
To do this, launch AirPort Utility, select your base station, and click Manual Setup. In the Access Control view, choose Time Access to turn on MAC filtering. You'll need to enter the MAC address of the particular computer, which (in 10.5 Leopard and 10.6 Snow Leopard) you can find in the Network System Preferences pane: click AirPort in the adapter list, and click Advanced. The AirPort ID is the MAC address.