This site is for issues relating to Windows Vista activation issues and not Office products. I am assuming that Microsoft Standard is actually Microsoft Office Standard 2007 edition. You should repost here:
http://answers.microsoft.com/en-us/office/forum/office_install and provide as much information as possible including your operating system, service pack level, exact error messages
and the location where you are obtaining the product key from (the one on the sticker on the bottom or back of the computer is for Windows, not Office.)