Fred,
Try

SELECT suppliercode, productcode, dollarsales
	FROM mytable mt1
	WHERE dollarsales IN (
		SELECT TOP 10 dollarsales 
			FROM mytable mt2 
			WHERE mt2.suppliercode = mt1.suppliercode
				AND mt2.productcode = mt1.productcode
			ORDER BY dollarsales DESCENDING)	

>I have a table with suppliercode,productcode,dollarsales
>
>I want the top 10 product codes for each suppliercode. Is this possible