My real name is coming up on the ims in the chat rooms. how do i get yahoo id name to come up as in chat room?

go to "my account" next to your username on yahoo. then it usually asks for your pword, so type that in. then click "edit/create profiles" on the right. there should be a list of public profiles (i just have one, you probably do too). click "edit." then click "edit profile information" and you can delete your real name from the public profile.