[TYPO3-shop] problems with template

[Xatucans]

Hi everybody, I´ve installed tt_products with this configuration:

typo3  ver: 4.0.5
tt_products ver: 2.5.2

and I've configure my shop that way:
1- I´ve created a a new page (Type:Advanced; Contains plugin: Shop) called
Myshop and a sysfolder called Items
2- I´ve inserted  Products plugin content element in Myshop page, with
Products:list Display mode and with Items folder like Startingpoint
3- I've created a new Template for Myshop page and I`ve called my shops's
template from the Constand textarea, like this:
"plugin.tt_products.file.templateFile =
fileadmin/tmpl_files/products_eur.tmpl"
4- I've included the Shop System Old Style (tt_products) in Include statics
of  Myshop page's template

but Myshop doesn't display any kind of contend, it looks like if it couldn't
find the template (called from Constans), but the path is correct. Can
anybody help me please?