how to install wireless networking in fedora

[duraidurai]

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in my laptop i installed fedora core 1. but it is not detected wireless e'net card(intelpro wireless 2100 3b mini pci card) inbuilt one.

hoe to install wireless adapter
in fedora. please guide me to solve this issue, and i installed yahoo messenger, once i worked with messenger. after i can't work. i have deleted all yahoo releated files. then agian i run the rh9.ymessenger-1.0.4-1.i386.rpm
file , it is not running, it showed , ymessenger currently installed, but there is no ymessenger files. how to solve this, let me know uninstall procedures and installing steps.
please help me
durai