Older Posts button…

I’m using Pretty Theme 1.6 by Catarina Yamamoto.

There is an “older entries” link at the very bottom, but it’s extremely small. I get emails all the time asking where all my other content is, etc.

I’d like to change this from a small text link into a big button link. How could I do this?

Here is the code I believe…

<div class="navigation">
			<div class="alignleft"><?php next_posts_link('&laquo; Older Entries') ?></div>
			<div class="alignright"><?php previous_posts_link('Newer Entries &raquo;') ?></div>
		</div>

Thank you!