after add to cart, i get virtuemart cat. view

hello

rebuild the site, to be seen here:
http://test.galaspecialist.nl/

when you click the one item, to put in the store, after clicking i get a strange VM category view. the checkout page from gavick is gone....

also, in the detailed view, i now see 2 squares left from the amount. Should there be a "+" and a "-" sign perhaps?

thanx
emel

in addition: clicking a product within NSP will end up in the category view (NO "gavick" cart view), after you click the product within the category view (to buy), again the cat view. so there is a LOOP going on, which i can't fix myself.

anybody?