problems configuring prestashop online

[ady_buzzy]

Hello. I have the next problem:

First of all, I Installed prestashop on localhost, using xampp, I succesfully managed the template while it was on localhost, and then I tried to install it online.

1. I backup'ed the db from localhost to my online account and name it web109_prestashop. I created an user web_presta and a password.
2. I created a new subdomain named "site-nou" and I placed there the prestashop
3. I modified the config parrameters :
<?php

define('__PS_BASE_URI__', '/site-nou/');
define('_THEME_NAME_', 'theme001');
define('_DB_NAME_', 'web109_prestashop');
define('_DB_SERVER_', 'localhost');
define('_DB_USER_', 'web109_presta');
define('_DB_PREFIX_', 'ps_');
define('_DB_PASSWD_', 'XXXXXX');
define('_DB_TYPE_', 'MySQL');
define('_COOKIE_KEY_', 'o18yaF8szPd7s9kBPNQ5eIdZvahCCnIOVH1y1tWG0zZkV1UzXA9IwuMN');
define('_COOKIE_IV_', '3PMgO0Fi');
define('_PS_VERSION_', '1.3.6.0');

I get the next error: HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.

What can I do?

Please help.

Thanks!!!

ps I attach some pictures, maybe you'll figure it out!
?>

[ady_buzzy]

anyone, any idea?

[ady_buzzy]

help me this problem drives me crazy ~x(

[ady_buzzy]

still no answer...

[Don Camillo]

Well I am very curious too, I want to put my shop online tomorrow or the next day.
I created mine with wampserver, but now I have to put online. Is that difficult to do?