Installed this today and it did nothing. Was not listed in the modules under admin and crashed the front-end of my cart with the following error.

Fatal error: Cannot redeclare class paypal_osc in /home/***/mydomainname/html/includes/modules/payment/osC.class.php on line 18

added a fix.

if ( class_exists('PayPal_osC') )
{
return;
}

before the error, still did not show in modules and still crashed store front. Glad I always back up my files. Restored previous versions works fine, but still the old version. Just another waste of time and lake of install information from CRE

it would be greate if you provide some more step by step installation of the module. Here i have downloaded the same but I am not able to install the module on cre loaded 6.4 .

Thanx
dushyant Joshi