[CentOS] CentOS 5.2 -- how do I choose a wireless network?

Hi.  Thanks again for all your replies.

The CentOS 5.2 Live CD does include NetworkManager.

However the only choice in the Network Manager applet is "Wired Network".

I then tried Ubuntu Live CD.   Using it's network manager, I was able
to browse the several local wireless networks, and to successfully
connect.

This is on an IBM T42 laptop.

Best,
Aleksey