your IP address is all over the internet.
dont worry about it.
and if you are worried, then get a virus protection thingy, like Norton Anti-Virus
for example, if im not mistaken, your IP address appears on every post here on this very message board. (but only moderators can see it)
also i think ICQ has it so that if you have someone on your buddy list, it tells you their ip address.
im not sure how msn and yahoo messenger work :?
and im not sure how aim is now, but im sure there's people out there who create crazy software that you can download for aim that lets you hack into peoples aim and find out their ip address, i dont know.whatever :roll: