The file admin/whos online throws this error:

Deprecated: Function eregi() is deprecated in adminwhos_online.php on line 558

You can correct it if you replace line 558 with :

if (preg_match('/^(.*)' . tep_session_name() . '=[a-f,0-9]+[&]*(.*)/', $whos_online['last_page_url'], $array)) {

No files, only the above.

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