Please include meta_oscommerce in your template in the page where the shop will start.

You can redefine all variable from the installation here, and also you car redefine the stylesheet used.

You have access in the constant to :

# absolute url of the web site

plugin.metaoscommerce.adresse_base = http://www.domain.com/

# name of the stylesheet to include

plugin.metaoscommerce.catalogue_css = typo3conf/ext/meta_oscommerce/mod1/oscommerce/stylesheet.css

# page id for traitement plugin

plugin.metaoscommerce.page_cible = 4

The setup template also put the no cache option, needed on all pages of the shop (for session and refresh of product list)