[balinor]

Well, since your store is not secure, I was able to go in and look at your customer/main/welcome.tpl template (you need to fix that ASAP) and here's what it shows:

{include file="customer/main/newproducts.tpl" n_products=$n_products}

That is indeed an add-on from someone, it is not stock X-Cart. To remove that, and add the standard featured products module, simply replace that code with this:

{include file="customer/main/featured.tpl" f_products=$f_products}

You can then change your products via the 'Categories' link in the admin.