ways to run multiple yahoo messenger usernames?

hello, have messenger and several yahoo account names. want to run messenger under each different yahoo name. have read online tutorials about how to alter the register to make this possible or seen some software downloads that claim to do this for me.

any of you have experience running multiple yahoo messengers and would like to share that experience?

One of my yahoos is personl and the other is more business so do not want to close one or the other.

thanks. btw went on youtube n there are many ways to hack and steal passwords etc. surprised youtube would allow that.

Msongs

If Yahoo is anything like MSN (hotmail) you can only keep one account active at a time because it uses system resources that the second account cant access.

Only way I can think of is to run it on two boxes.

Ken