Changing Office 2004 product key.

I have office 2004 on my computer. Shortly after we got a second iMac, so i put my copy of office on the new computer. We are unable to have office open on both computers due to copy protection in office, so I bought another copy of office and installed it, however it used the product seial number that i used to install it the first time, how do i change it to the new one i just bought?

This article may help you with it.

IT WORKS!!!! Thank You.