code to use diffrent single.php

Hello,

I am trying to get a taxonomy slug to open a diffrent taxonomy single.php

I tryed

<?php $post = $wp_query->post;
if(appthemes_get_custom_taxonomy('slug', $post->ID, APP_TAX_STORE) == 'name') {
include(TEMPLATEPATH . '/single-coupon-1.php');
} else {
include(TEMPLATEPATH . '/single-coupon-2.php');
}
?>

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I would like to get diffrent Stores in this taxonomy to open in diffrent single.php.

But I failed (name = Storename)

I can show the store name with this php code:
<?php echo appthemes_get_custom_taxonomy($post->ID, APP_TAX_STORE, 'slug'); ?>
Any body can help???