I had two problems with it, but got the solutions.
First – the annoying Strict Standards warning.
Changeline in the plugin file:
$o['name'] = end(explode('/', $o['url']));
$nval = explode('/', $o['url']);
$o['name'] = end( $nval );
Second – not uploading actual files, just the filenames. I followed what @locomo wrote above, and it worked.