problem with cart

problem with cart

hello,
joomshopping is a great component and I love it.
there is only one thing:
I have a problem with cart/wishlist.
the cart/wishlist in joomshooping is identified by id_cookie and it is great when the user is not registred but I need identification by user_id.
please help me - where in the component code, I have to correct it (and what I have to correct).

ps. sorry for my english.

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