wireless sniffer for msn messenger

[probing_tool]

hi all,
How can I sniff all the MSNMessenger communication that is going through my WEP encrypted wireless network at home using UBUNTU?

I tried installing Kismet. But couldn't figure out how to make it do what I need.

p.s,
I'm new to linux... so bare with me

[willca]

if you got tcpdump installed then use that as such...

sudo apt-get install tcpdump

tcpdump -nvvv -i wlan0 host

Or you can use wireshark if you prefer gui.

sudo apt-get install wireshark