add slide to only homepage in the header.php file

This is what I did:*

<?php if (is_front_page() && function_exists( 'soliloquy' ) ) { soliloquy( '4' ); } ?>

*I’m using version 2, and you will need to change your slider number from 4 to whatever number soliloquy assigns you – which you can find under the template tag column under the plugin admin page.

if “is_front_page” doesn’t work, try “is_home” instead.

Check out http://mmacfadden.com/lax to see an example.