setting up SMTP notifications

I have backup exec 2010 installed on server 2003 latest updates and hot fixes installed.  i need some assistance in setting up the alert , emial notification in BE 2010 without an exchange server.  how do i set this up this is a stand alone server.  I just want BE to email my gmail account when the back up is complete and any other alerts.  I know this probably been asked million times but is there a guide for this.  I do not recall how to set this up.  thanks in advance.