I need to track time between products and phases.  Initially, I had this, and
it gave me the correct information:  A$3 references the 'label' ALPHA1 on the
current sheet, that I am getting the total hours from on the Details sheet:

=SUMIF(Details!$G12:$G2000,A$3,Details!$E12:$E2000)

Now, I want to add a futher breakdown: THis product has 2 current releases
in various phases.  I want to track the ALPHA1 time for version 7.1.0 in a
separate column for totally than the 7.2.0 version.   ON the details sheet, I
have the F column that contains the version info (7.1.0 or 7.2.0)  

So, what I need is to be able to check for 7.1.0 or 7.2.0, then the Phase
(Alpha1, Beta2, etc.), and add to the appropriate total on the summary sheet.
There will be a column for 7.1.0 and a column for 7.2.0, and the rows are
the ALPHA1, ALPHA2, etc.

So, how do I fix?