[Plugin: WP Sphinx Search] howto get it working with sphinx 1.10

To get it working go into the original wp-sphinx-search.php

1. delete lines 90-92

foreach($results['matches'] as $result) {
$matching_ids[] = intval($result['attrs']['post_id']);
}

2. replace those lines with
$matching_ids = array_keys($results['matches']);

And now it works!

http://wordpress.org/extend/plugins/wp-sphinx-search/