Conditional Formatting on Due Date

I am doing a color coded training chart
I have annual training and over 150 employees to track.
i would like to know how can i make dates that will be due soon (w/n 30 days) yellow and training that is current green.

IE - I completed training 4/13/2013 i will be current until 4/14/2014 so that should be green, however i did training 9/30/2012 and that i coming due within 30 days on 9/30/2013 this should be yellow

I have been able to accomplish the due/pastdue. Can someone help me, i have attached a sample. It includes what i have been able to accomplish?

Thanks