I would be sure it is a legitimate Yahoo program. If it is, I would trust it.Try Microsoft Office Live: http://smallbusiness.officelive.com/en-u��For almost free, you can quickly and easily build a very professional looking website. I have built three website through this program and have received many, many compliments.Goodluck!
do not use yahoo site maker try something like: blogger,wordpress,wix,or weebly
WEEBLY - its the best free easy website creator, plus it has advanced editing if u r advancedmy weebly site: addictivegames.weebly.com