Hey izne,
I had run into a similar problem recently while developing a WP site with Shopp. I needed users to be registered prior to setting up payments, as we are integrating the site with Authorize.Net’s Customer Information Management(CIM) system.
Everytime I tried using the Shopp Customer Register plugin, it would say that I had entered an incorrect password.
After scouring the internet with no luck besides finding this post, I decided to take a look at the code.
Line 233-237:
else
{
$shopp_customer->password = wp_hash_password($data['password']);
}
$shopp_customer->save();
Change $data[‘password’] to $customer_data[‘password’] and voila, it works!
-Steve