Passing Date to Stored procedure as variable

Thanks in advance for your help!!!!!
I have created a stored procedure that uses a date range for paramenters. As long as I hardcode the dates in (3/21/03, 3/25/03) I get no errors. As soon as I replace the dates with the variable name and try to run the sp, I get an error message that it can't convert string to date.

It is my plan to call this sp from a web page and pass the date paramenters where they look like this 3/21/03

Here is what I have
@.BegDate Smalldatetime,
@.EndDate Smalldatetime
....
....
Where EntryDate BETWEEN '@.BegDate' AND '@.EndDate'

Could someone please help me understand what I am missing?

Thanks,
Leeyou are searching where EntryDate is between the string '@.BegDate' and the string '@.EndDate' not the values contained in @.BegDate and @.EndDate.

use Where EntryDate BETWEEN @.BegDate AND @.EndDate|||Thanks so much!!!!!! ' '