I am having issues with listing articles on specific categories. No matter what I do, all the articles are listed. Here are some examples I have tried:

<?php $nppage = '10'; $cat[] = 'Cat1'; $cat[] = 'Cat2'; include 'newsapp/index.php'; ?>

<?php $nppage = '10'; $cat[] = 'Buy Gold'; include 'newsapp/index.php'; ?>

Both of these options list every category article. My main page is suppose to list every category article. No problem there. But in my example, "buy gold" category has a few articles that have have "buy gold" cat picked. A few other articles have other categories picked (but not "buy gold"). When I go to the buy gold page, all articles are listed. Seems like it ignores the $cat option.

Ideas??