Joomla + VirtueMart Instalacija

Pozdravljeni,

inštaliram sem novo joomlo (Version 1.5.15),
sedaj pa bi rad še inštaliram VirtueMart (1.1.4.j15).

V administraciji joomle: Extension > Install > Upload Package File,
želim uploadati original .zip/ano datoteko (com_virtuemart_1.1.4.j15), velikosti malenkost čez 2MB,
pa mi vedno izpiše napako:

Request Entity Too Large
The requested resource
/store/administrator/index.php
does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit.
Request Entity Too Large

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, [no address given] and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.

Zanima me kje oz. kako naj spremenim parametre, da bo inštalacija VirtueMart uspešna.

Hvala in lp