FLASH CS4 link 5 flash buttons to 5 URLs

I Need help with a FLASH CS4 .fla file ... I have already modified the fla. file for the other graphics and I am able to edit the button graphic properties, but I am stuck on this problem linking the buttons to URLs and have no more time to figure out action script and what I need to do to fix the errors... #1. I Need to link the 5 existing buttons to 5 http:.... URLs. The existing buttons could be linked to any http://www.website... I can change the URLS in action script afterwards ... #2 Debug the modified .fla file and make sure it works in IE, Firefox, Safari and Opera. I have the original .fla template and the modified .fla files plus psd sources for the button images if need be...