Sure, once you edit your Savia\portfolio-three-column.php you will see the arguments for the query that gets your portfolio items.

$args = array(
	'post_type' => 'portfolio',
	'posts_per_page' => (ot_get_option('portfolio_items_per_page',9) ? ot_get_option('portfolio_items_per_page',9) : 9),
	'paged' => $paged,
	'order' => '',
	'orderby' => '',
);

You can pass the ‘order’ and ‘orderby’ params to change the order of the results.
Here’s how:

http://codex.wordpress.org/Class_Reference/WP_Query#Order_.26_Orderby_Parameters

So for example if you want them ordered by ‘title’ in a descending order you would do this:

$args = array(
	'post_type' => 'portfolio',
	'posts_per_page' => (ot_get_option('portfolio_items_per_page',9) ? ot_get_option('portfolio_items_per_page',9) : 9),
	'paged' => $paged,
	'order' => 'DESC',
	'orderby' => 'title'
);