Help Needed - VBA If statement!

[WebWizard97]

Hello fellow Excel Users,

I am new to VBA in Excel and need some assistance.

Background: I have a workbook "Corporate Sales" which contains (13)
worksheets, one for each month of the year (Corprate Sales Jan 2004 -
Corprate Sales Dec 2004), and one worksheet that I want to use as a
settings worksheet (Settings Worksheet). I have tried to automate each
worksheet to populate the sales territory based on the salesman's
initials using the following formula:

-----------------------------
column "B" = Sales Territory (contains the formula)
column "C" = Salesman's Initial

=IF(OR(C7="AM",C7="BP",C7="DA",C7="JS",C7="SW",C7="WB"),"No.",IF(OR(C7="JD",C7="KO",C7="PD",C7="SP"),"So.","
"))
-----------------------------

unfortunately, if a salesman is added or deleted I need to manually
modify each of the (12) worksheets. I want to develope a VBA "IF"
statement which will do the following:

-----------------------------
Compare salesman's inital column / range:

"Settings Worksheet - C3:C10,C12:C19,C21:C28 (salesman's initials)"

to

"Corprate Sales Jan 2004 - C2:C53 (salesman's initials)"

if the salesman's initals match and

"Settings Worksheet - C3:C10,C12:C19,C21:C28 (sales territory)" = North
or South

populate

"Corprate Sales Jan 2004 - B2:B53 (sales territory)" with No. or So.
-----------------------------

this way I can use the settings worksheet to add, modify, or delete
salesman. I have tried the following, however, being new to VBA I
could not get anything to work:

-----------------------------
Function GetSalesTerritory(strRep As String, varVal As Variant) As
Variant

If strRep = Worksheet("Settings Worksheet").Cell("C2") And
Worksheet("Settings Worksheet").Cell("D2").Value = "North" Then
Worksheet("Corprate Sales Jan 2004").Cell("B2").Value = "No."
End If

End Function
-----------------------------

I put "=GetSalesTerritory()" in "Corprate Sales Jan 2004 - C (salesmans
initals)" to call the function, but nothing seems to work.

Any and all assiatance would be greatly appreciated.

Also if anyone knows of a good VBA book for Beginners / Intermediate
that I could use as a reference would be helpful.