Calculate average $/HR by pulling data from two workbooks

Hi,
I have two excel files that I am trying to gather information from to calculate the average $/hr earned by employees. The first file, which is currently called "Book 1" is generated by a different VBA code, the other "Employee Hour Output" is generated by our time clock program. What I am trying to do is have the script run from the PERSONAL workbook and look in the Employee Hour Output. In column B there are Employee names, for each employee that worked, there is a list of invoice numbers located in column E. The code needs to see which invoice numbers each employee worked on then compare that to the $/HR earned from that job in the Book1 workbook. Then based on all the jobs worked, calculate the average $/HR that employee earned in the given time period. This information needs to be displayed with the employee name and $/HR in the first available row of columns H and I of the Book1 workbook.

I feel like this isn't too terribly hard to do, however, my VBA knowledge is still very limited, so I have been failing pretty badly at making this work. Any suggested direction to go with this would be greatly appreciated....