Ok, we can use SUMPRODUCT to make these calculations.
First we need to add some dates to search by. I inserted a row (Row 2) in Sheet1. The I put in these formulas.
S2 = 1/1/2005
T2 = 2/1/2005
U2 = 3/1/2005
V2 = 4/1/2005
W2 = 5/1/2005
T3 =SUMPRODUCT(--('POD Adhoc Report'!$B$3:$B$1000=Sheet1!$A3),--('POD Adhoc Report'!$D$3:$D$1000>=Sheet1!S$2),--('POD Adhoc Report'!$D$3:$D$1000<T$2))
Fill across and down.
You can do this within a two week period as well. Just make the dates what you want to search between.
See attachment.