Hi,
I’m not sure if you figured out the solution to this, but something I used on theminaretonline.com calls for various queries and counts.
Here’s an example of the code used to pull in content relating to a particular category and the count:
<?php if (have_posts()) : query_posts(array('category__and' => array(49,425),'posts_per_page' => 1, 'cat' => -150,-88,-66,-71)); while (have_posts()) : the_post(); $postdate = get_post_time('Y-m-d'); if ($postdate > $dontdisplay) { ?>
You can see that in this example, I am calling an array of an article/post that requires being both category 49 and 425. It is also omitting articles/posts under categories 150,88,66,71 since there could be overlapping content. The count is one.
You can of course modify the count and categories.
Hope this answers your question.
-Alex