Naming Ranges So Intersect Works

I have 4 sheets (2006,2007,2008,2009) Each has appx. 365 named ranges of 65 rows each. Each row (col A) has text(7:00 am, 7:15, 730, 7:45...11:00 pm (thats 65 rows)) to make a very useful schedule. The top 8 rows of each sheet are frozen so that a control panel has a place to sit. From the control panel, you can click on the go to "TODAY" button and the schedule scrolls to that day and indicates it in a label on the panel. When I named each range, I put a water mark of the day in the back ground so the user always knows what day it is. I also named each range with its respective date and the label on the control panel is supposed to indicate the active range(for instance: the user scrolls down 12 days and clicks inside it).
MY PROBLEM: Code that returns the intersection of the active cell and the name of the range does not work with the way in which I named my ranges. It works on a more simple named range However.

Sub DefineNameandwatermark2007()
Dim i As Long
Dim a, b, c, X
Dim dt As Date
Dim sr As String
dt = DateSerial(2007, 1, 1)
For i = 8 To 25000 Step 66
j = j + 1
a = Application.WorksheetFunction.Text(dt + j, "ddd")
b = Application.WorksheetFunction.Text(dt + j, "mmm")
c = Application.WorksheetFunction.Text(dt + j, "d")
X = a & "_" & b & "_" & c
ActiveWorkbook.Names.Add Name:=X, RefersToR1C1:="=2007!R" & i & "C1:R" & _
i + 65 & "C1"....................................