HOw can I download a free office word on my windows vista for a trail period my windows vista did not come with a backup recory disk?

hi

as you have had your free trail it is now tme to decide if you wish to buy Microsoft Office or Word

below link is to microsft store for office versions and pricing

http://store.microsoft.com/microsoft/office/category/2

you also may be interested in reading about and downloading the free open office suite of office applications at the below link

http://www.openoffice.org/

My trial offer for windows office and or excel  has expired !Can I download another free program ,if so which one and I did try windows 2010 but had errors?

You may have only 1 trial of Office.

You are confused between Windows and Office. There is no such thing as Windows 2010, only Office 2010.