Well what error(s) do you get? Need a little more information than "can't install programs".
Are they compatible with Windows 7 (have you checked?)
What exact error message do you get?
Is your administrator account in the administrators account group for your local PC? <--- this is a big one.
for: Ms Office 2007 & i know it is Win 7 compatible.
I will get the error message later ...
How to check if the Admin account group for your local pc? .... i don't know how to verify this. please help.