Current URLs to target

http://localhost:12345/our-prods/subsec.aspx?mid=6 - Displays all Media products

http://localhost:12345/our-prods/for-sale.aspx?mid=6&sid=19 - Displays all media products, for a particular brand

http://localhost:12345/prod/details.aspx?pid=11&mid=6&sid=19 - displays the product

I am trying to get the URL to go from

http://localhost:12345/our-prods/subsec.aspx?mid=6

to

http://localhost:12345/our-prods/subsec.aspx?Cds

In the UrlRewriting.config file i add a new entry:

<add name="TestUrl"
 virtualUrl="^~/our-prods/subsec/(.*)/(.*).aspx"
     rewriteUrlParameter="ExcludeFromClientQueryString"
     destinationUrl="~/our-prods/subsec.aspx?mid=$1"
     ignoreCase="true" />

I refresh the page and it doesnt work. What could i be doing wrong?