yck210:
Hotmail is committed to your safety and implemented the Safety Bar feature to alert you that a message may be unsafe.
To view a message that has been marked as potentially fraudulent, click "Show Content" link. This action causes the text contents only of the message to be displayed. You can then better determine whether the message is from a legitimate source.
I suggest that you add the e-mail addresses or domain to your Safe senders list. For the steps, please refer to:
http://windowslivehelp.com/solutions/settings/archive/2009/03/03/how-to-filter-incoming-messages-and-block-or-allow-from-specific-sender-or-domain.aspx