UL Rewriting

Hi Friends

I'm using URL rewriter for the rewriting in my application.Here i have got an issue in the following situation, i have written the rule like http://MyDomain/Category/1.aspx will be redirect to http://MyDomain/Category.aspx?CategoryID=1 .So this works fine , but in the same page i have a repeater and i wrote the logic for implementing paging for the same.

So now here i have to  send the Page Index through the query string ,but i'm confused how i can write the rule, i would like to see something like http://MyDomain/Category/1.aspx?Page=1 to be redirected to  http://MyDomain/Category.aspx?CategoryID=1&Page=1 .

Can anyone suggest me a solution for the same would be very helpful

Thank You
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