Matrix Sorting

Hi. I need to implement a matrix that supports column sorting just like a table.
For example, given a matrix that contains...

Col1 Col2Row1 1 8Row2 2 6Row3 3 7

...if the user clicks on "Col2", I need the matrix to look like this:

Col1 Col2Row2 2 6
Row3 3 7Row1 1 8

I cannot use the interactive sort feature since the matrix must be WYSIWYG with the printed copy and the built-in interactive sort arrows do appear in printed output.

Here's my partial solution; my hope is that someone can point me in the right direction from here:

When the user clicks on a column heading I will jump to a URL such as:
http://myserver/myreport.aspx?SortField=Col2&SortDirection=Ascending

SortField and SortDirection are parsed by the web app and passed as parameters to my report.

So, after the user clicks on Col2 the report knows the following:
Parameters!SortField.Value = "Col2"
and
Parameters!SortDirection.Value = "Ascending"

Given this information, is there a way to tell the report's matrix to actually display the data in the order shown in the example above.

Thanks for any help you can provide.