fireware for airport express 802.11 g?

Hey there KB020282,

It sounds like you are wanting to update your Airport Express firmwre. I found this article to help you get that accomplished named:

About AirPort base station firmware updates

http://support.apple.com/kb/ht1218

You can install it from the Airport Utility from either your Mac or your iOS device:

OS X

1. Make sure you are connected to the Internet.
2. Open AirPort Utility. (Navigate to the /Applications/Utilities folder, to locate it.) AirPort Utility will display a badge to the right of the name of any AirPort base station in your network that has a firmware update available for it.
3. Select the AirPort base station you want to update.
4. Click the Update button.

iOS

1. Make sure you are connected to the Internet.
2. Tap AirPort Utility on your iOS device.
3. AirPort Utility will display a badge to the right of the name of any AirPort base station in your network if there is a firmware update available for it. Tap the AirPort base station to update.
4. Enter the password if prompted.
5. Tap Version.
6. Tap Download and Install.

Important: If you are updating an AirPort base station that shares internal or USB disks, disconnect any clients that may be using them before installing the firmware.

Thank you for using Apple Support Communities.

Cheers,

Sterling