Excel and calendar control form

I have got an excel spreadsheet which I would like a calendar control form to do analysis of totals between two dates e.g. column 1 has dates, column 2 has numbers the calendar control form would let user pick start date and end date referenceing column 1, and return the total value for data between those dates in column 2 Column 1 = column V on my spreadsheet Column 2 = column AO on my spreadsheet I use excel 2003 but this must also work in 2007