Apple has posted a Security Update and an Airport Update respectively labelled "2006-005" and "2006-001" through the Software Update utility and through its support web site.
Security Update 2006-005:
Security Update 2006-005 is recommended for all users and improves the security of the following components.
AirPort
For detailed information on this Update, please visit this website: http://docs.info.apple.com/article.html?artnum=61798.
Airport Update 2006-001:
The AirPort Update 2006-001 improves AirPort reliability on Macintosh computers.
SHA1 AirPortUpdate2006001.dmg=
94855a341c05344dab4f965c595c7149352d2617
For detailed information on SHA 1 Digest, please visit this website: http://www.info.apple.com/kbnum/n75510
For detailed information on this Update, please visit this website: http://docs.info.apple.com/article.html?artnum=61798.
The updates respectively weight 1.5MB and 1.3MB and are Universal Binary. The Airport update will install only on Macs that run builds 8J2135 and 8J2135a of Mac OS X Tiger 10.4.7.

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nice! where is 10.4.8? :)
nice! where is 10.4.8? :)