Parse error on Payment Module after installation

[EPierre]

After installation from a win98 dev site, I get the following:
Fatal error: Call to undefined function: check() in /home/virtual/site22/fst/var/www/html/librairie/catalog/admin/modules.php on line 126;

This happens on Payment module. Shipping & Order-total are right

line 120 to 132 in admin/modules.php:
include(DIR_FS_CATALOG_LANGUAGES . $language . '/modules/' . $module_type . '/' . $file);
include($module_directory . $file);

$class = substr($file, 0, strrpos($file, '.'));
if (tep_class_exists($class)) {
$module = new $class;
if ($module->check() > 0) {
if ($module->sort_order > 0) {
$installed_modules[$module->sort_order] = $file;
} else {
$installed_modules[] = $file;
}
}

Can someone help ?

Tanks

E.P.