Create a query with your fields for company and product and then whatever other infor you need. In the criteriea for these two fields put in a reference to the field in your form, i.e. Forms!MyForm!ComboBoxName
With your form open, running the queary should return your results for that company and product, then you just have to make a report that is based on your query and make it open whenever you push a button or whatever you want to do.
-Jake