This is just a temporary help to open your MS Word Files. But it isn't a solution to run your program at this moment.
Go to OpenOffice.Org. Download the software, which is free of cost and would just get installed into your system within minutes.
There you would find a tab "Open".
Select the required file with the option Open with OpenOffice.
All your MS Word files can be accessed or opened. Now till you install MS Word properly, you can work with those files in this manner, can also create new files and save them with word document extension, by choosing the right option while saving them.
Hope that works.