Help me please

I am busy building a website in flash mx 2004, and I am wanting to beable to use action scripting to beable to load anouther page into the main page ie : if I was on the main page and I wanted to click to go to the contacts page, I want to beable to have that contacts page load up in the same window. I hope I am making sense with this. If anyone can help me I would really appreciate it.