Using images for navigation, how to put the path?

I am replacing the “Previous Page” and “Next Page”
with this code.

<?php posts_nav_link(‘ ‘, ‘<img src=”images/prev.jpg” />’, ‘<img src=”images/next.jpg” />’); ?>

But I need to call the images from the theme folder using this code:

<img src=”<?php bloginfo(‘template_directory’); ?>/images/date.gif” />

Because that contains PHP itself, it doesn’t work.

So, how do I call the template directory when the image tag is in php code to start?

I’d also like to know if I can keep the text and have an image beside it?

ie; <IMAGE>Previous Page

Thanks.