Can't receving email outlook 2007

I installed Office 2007 enterprise version under XP sp2. I opened outlook
2007 and followed instruction to set up, but I only can send email. I can't
receive email. I typied right for POP and SMTP server.

I got error message as below,

"Your email server rejected your login.Verify your user name and password in
your account properties. Under Tools, click E-mail account, the server
responsed: -ERR a password MUST be entered."

I tried many times to enter user name and password, but got same result.
Please someone can help me to solve this problem. My outlook 2000 already is
removed.
--
Jim Lee