The listing that you see on the left of the pages is controlled by the code in the CSSMenuWriter > intermediate.php file. In here there are two queries that power the listing. You can adjust the queries to meet your needs for these listings, however the queries used are a bit advanced and knowledge of SQL would be required to make these changes.
If you would like to change the number of products listed on the results page open up the Products_Results page and look for this line of code:
$maxRows_WADAProducts = 5;
This is the setting for the number of results that you see on the page at a time.