I have installed Trados 2006 with upgrade 2007 on my new PC but I cannot see the Trados buttons in Word 2007....why?

Do I need to install Windows 2010?

or buy a new upgrade? or the new programme 2017?

Will all my previous translation memories be read by the new programme?

I am a freelancer since 10 year and I don't want to loose all my jobs!!