I tried also, but Yahoo being free and all they want you to keep coming back to there site to retrieve your email. I contacted yahoo and NO, they do not provide the POP3 and SMPT availability to get your email. As for Hotmail, I don't know, never messed with it.
I've sinced just used the email account provided by my cable ISP and have no problems with Outlook 2000 getting my mail from them