Can I pass a date with the query string? Will the slashes cause a problem in this example?
Yes they will. You will need to “encode” the data before passing it within the “URL”. To do that, use the Server.URLEncode function:
testing.asp?date=<%= Server.UrlEncode("03/01/00") %>
Make sure you are only “UrlEncoding” your values, and not the entire querystring itself. Do not try to encode the question mark (?), the equal to (=), and the ampersand (&) characters that make up a valid query string.