AutoFilter Macro Between Dates

I recorded a macro to custom AutoFilter 2 columns in a worksheet. The information will be filtered between 2 dates; i.e. >= cell B2 and <= cell C2.

Both cells are formated to dd/mm/yy so i entered 1/12/06 (for 1st Dec) in cell B2 and 31/12/06 (for 31st Dec) in cell C2.

When i enter these 2 dates, click the button to run the macro and check the custom filter in the "Planning" worksheet it appears that the dates change to 12/01/06 and 21/12/06 and no records appear - although i know at least 65 rows should show.

If i then enter the dates in B2 and C2 as mm/dd/yy instead (but leave the date format of the cell as dd/mm/yy) the filter works perfectly; i.e. enter 12/01/06 and 12/31/06. However I plan to issue this spreadsheet out to other staff and as every other date in the spreadsheet is in the uk format dd/mm/yy i dont want to confuse them by insisting they use the mm/dd/yy format for this one function.

Has anyone ever encountered this before? and if so is there some way i can fix it?

Heres the code for the filter:

Sub Monthly_Stats()

Sheets("Planning").Select
Selection.AutoFilter Field:=5, Criteria1:=">=" & Sheets("Filtered Statistics").Range("B2").Value, Operator:=xlAnd _
, Criteria2:="<=" & Sheets("Filtered Statistics").Range("C2").Value, Operator:=xlAnd
Selection.AutoFilter Field:=82, Criteria1:="<>"
End Sub