If you want to discuss things with your friend(s) and want to assure stuff cannot be read by 3rd parties while being sent through the internet then you should look in to this:
http://www.secway.fr/us/products/simplite_msn/home.php
works great with Windows Live!
http://explore.live.com/windows-live-messenger?os=other
Sometimes SIMP (the encryption software) takes some minor tweaking to make it work but if you know how to re-boot the computer you are sitting on then don't let that scare you, it's easy to do!
http://www.secway.fr/us/products/simplite_msn/home.php
works great with Windows Live!
http://explore.live.com/windows-live-messenger?os=other
Sometimes SIMP (the encryption software) takes some minor tweaking to make it work but if you know how to re-boot the computer you are sitting on then don't let that scare you, it's easy to do!