Filtering Results via Drop Down Menus - Please help!

Hi, I love using EZ results but I was wondering if any one could help me. I have a few drop down fields that I want to filter my results by. The value of the drop down selections is the ID of the field that I want to filter by. For instance, I want to be able to filter by Company and then maybe by Open POs and then by Date, etc.

My question is how do I make it so that I can build a query from these items and have the filterd results display in EZR? I think it would be easy if it were just one field but I have multiple fields to query by and some may not be used in each query. Can some one people point me in the right direction?

Thank you so much!