New computer up and running. All documents and photos backed up onto external hard drive have been reloaded onto my new computer running windows 8.
W8 taking a bit of time to get my head around, mainly looking for programs, but I've only had it a couple of days.
I've installed my legitimate copy of Microsoft office home and student 2007 which I really like and am comfortable with. All my documents were created with this.
Tried to open documents and the message
Microsoft office word has not been installed for the current user. Please run setup to install the application.
Comes up 
I have tried reinstalling Office. I have run office diagnostics and that didn't pull up a problem. I have done something else (getting confused now) and it said not compatible. I don't want to download some dodgy win 8 app. I've looked at replacing something in the files with MOS.Dll (something similar) but too scared to mess up my nice tidy NEW computer as I did my old one probably
I can't afford new office and the one on the computer is I think, just a trial version.
Head is aching trying to sort this out as well as get to grips with a new OS and it is a bridge too far!
Please help.