OK...I got a little bit further....
Now I changed the query in products.php into:
Code:
$search_query = "($sql_tbl[products].categoryid='$cat' or $sql_tbl[products].categoryid1='$cat' or $sql_tbl[products].categoryid2='$cat' or $sql_tbl[products].categoryid3='$cat') and $sql_tbl[products].forsale='Y' &orderby=price &orderby=product ";
This seems to work.... Products will show up alphabetically. When I leave "&orderby=products"... I'll get no searchresults. The same happens when I skip "&orderby=price"....No results...
I am running bazurk!