why can i not reinstall both microsfoft 2013 outlook and office; i have windows 8 and i uninstalled to fix a problem

I have the 2 disc for outlook & Microsoft office that I purchased 2-3 months ago; plus I have the product keys; Yet I have spent 3-4 hours trying to re-install both outlook 2013 and Microsoft office with no success at all. Also I cannot find anywhere that allows me to use the web to download and use my product keys.

I am not able to receive any notices from this question as I have no email account so I will need to follow from this forum for replies