first of all, note that open convo notifiers are not as reliable as they used to be with msn 6.
read cookie's reply to openconvo notifiers here:
http://shoutbox.menthix.net/showthread.php?tid=28...d=389597#pid389597
secondly, like toddy said you can use messenger discovery, it comes with open window notifications...
and other features, it is an addon for msn. one of the problems is that some people find it to be very buggy. find more user comments here:
http://shoutbox.menthix.net/showthread.php?tid=48...d=508237#pid508237
you can use that addon, but if you want JUST an open convo notifier you can get
openconvo which is a plugin for plus!
if you have problems with it after the installation refer to this thread:
http://shoutbox.menthix.net/showthread.php?tid=38...d=378663#pid378663
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