Hello Fotakias, the reason why you are not finding drivers or the ones you are trying to install are not working is because this NUC supports 64-bit version only. Any 32-bit drivers are provided as-is.
Please check the following link for additional information http://www.intel.com/support/motherboards/desktop/sb/CS-034034.htm
Thank you @sylvia_intel.
I should have searched even more i guess. I now have a fully working 64bit Win 7 system.
thank you again.