If now the light-light aja .....
Create temen-temen possible mo someone check my YM status, whether the person is online or offline invicible (despite the YM V.9 can be seen), please visit some of these sites:

http://www.invisible-scanner.com/
http://detectinvisible.com/
http://www.4invisible.com
http://invisible.yahooscan.eu/
http://www.ym-spy.com
http://ystatus.com/

Well now we've missed it? why at the time you invicible ym status, you are still in the PM by other people?
And starting from now, you can better determine if your friends that Yahoo Messenger Online, invicible, or Offline ...... THX!

Oh yea almost forgot, if you want the status of your YM'm able to be in check There are also disposable begitan its facilities, please you look at one of the sites above!
Hopefully Helpful!