Really you should update to MSN Messenger 7.5, it is a very good version of MSN and you will get used to it quickly and easily, and definitely see the benefits of switching once you get it.
You can prevent this from coming up by using a patch, but patching is illegal, and chances are MSN Messenger 6.2 patches won't be available in a lot of places anymore.
(MSN Messenger 6 is barely support since Windows Live Messenger 8.0 is almost released, you're 2 version behind tbh
)
