There is no reason why you could not do this to your existing results page but if you do it will not function the same as it does in it's default state. The recordset on this page is designed to gather all of the details for all items regardless of category. Then the Search server behavior applied to this page filters the results based on the search criteria you enter.
If you modify this recordset to work with particular values then it will not function properly as a search recordset.
In the final steps I was trying to illustrate how you would be able to layout the results and have it repeat for all the records that are found in the recordset.