Quickoffice or Office Suite

[Knexo]

I see it every once in a while when opening an excel attachment, but not every time. I need to be able to open all office programs from email. How do you buy Quickoffice or are you having better luck with Office Suite. I have no problems opening office 2003 or earlier, but can't open any office 2007/2010. We use 2007 here in my office so that is the one I need.

Thanks,