ashnews FAQ:

Multiple categories:

At the top of the ashnews.php file (not in the 'ashprojects' folder), there is a variable array called 'allcatid'. Put in all the category id numbers you want, with a comma and space separating each. Also, set the $showname variable to 1 if you want to have the categories separated by category with the category name showing, or 0 if you don't.

Example:

$allcatid = array(1, 12, 10);
$showname = 1;

This will show categories in the order of 1, 12, 10. It will also group the categories and list the category name above their group.