Popularity Content – How To Isolate to Cat only?

I’ve been playing with this syntax for hours…

Here is what I have (template default)

<?php if (function_exists('akpc_most_popular')) { ?>
<ul class="list1" id="pop">
<?php akpc_most_popular($limit = 10); ?>
</ul>
<?php } ?>

And I’m trying to put the option in that it only looks at the current category for popularity. But I’m just hosing it up -!