Please make sure the users you shared the form with have verified their email address with their FormsCentral account. Here is an aritcile on how to set up email notificaitons with others: http://forums.adobe.com/docs/DOC-1424. Please make sure you have everything set up properly.
One other thing you want to check is to check the spam folder of the emails to receive notifications and make sure FormsCentral emails are not blocked.
*** Can I please have an answer to this if possible*****
I used that article to make sure the steps where followed. When the email comes in the user is clicking on the link and going to the web site. Is there something else that should be done?