Out of curiosity are any of these people showing online at all?
The server backend for this particular feature has been broken for 6 months or more now, so
what you're describing isn't exactly uncommon.
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"Bubba" <Bubba@newsgroup> wrote in message
> I have recently imported my contacts into a new account. About half of them
> have added my new account to their list, yet no one shows up on my Who has
> added you list. I've waited a few days now thinking that it just might not
> have updated itself yet, but I still have no one on that list.