Joel,
I'm afraid I'm being counterproductive here. Let my try to simplify this.
Don't worry about keywords for this example at all.
Imagine I have the dates in column A like this, with corresponding data in
column B

Column A
7/01/09
7/01/09
7/02/09
7/02/09
7/02/09
7/03/09
7/03/09

Now suppose the date is 7/03/09, so in this instance I need to copy rows 3-5
(data from the previous day) and place that data in Columns D and E. So
Column D would look like this

Column D
7/02/09
7/02/09
7/02/09

And Column E would have the corresponding data to those dates that was in B.
I need to do this every day, with a separate new document, so for today (the
29th), I need Column D to hold only data from the 28th. The last cell in A
will always contain the current date. I'm sorry to have wasted your effort
on the previous code, but I think this will get at what I'm trying to do with
better accuracy. Thanks.