Help, problema di path

Ho installato lo spaw editor.

le variabili da settare sono:

// directory where spaw files are located
$spaw_dir = '/spaw/';

// base url for images
$spaw_base_url = 'http://bettingsure.altervista.org/';


Allora in locale mi funziona ovviamente, su altervista mi dice:

Fatal error: Cannot instantiate non-existent class: spaw_lang in /membri/bettingsure/spaw/spaw_control.class.php on line 191


Il problema credo stia nel settare la var:
// directory where spaw files are located
$spaw_dir = '/spaw/';

dato che:
$spaw_dir - directory where spaw files are located. Set this to a virtual directory value relative from the root of your website

$spaw_base_url - this is used as a base url for images inserted through image library. It was introduced for cases when you access your admin area via different hostname than the one used by visitors. Set this to your web hosts root including the trailing slash (i.e. http://www.mycompany.com/).

DOMANDA:
QUALE é LA virtual directory del mio account bettingsure.altervista.org?

RI-EDIT:
Ho cercato in giro ( http://phpnukedownloads.de/postt66.html )

No, la dir l'avevi indicata giusta:

// directory where spaw files are located
$spaw_dir = '/spaw/';

Ma probabilmente fai confusione tra
$spaw_base_url
e
$spaw_root

Puoi indicare la tua config includendo anche $spaw_root ?