New Post: NB_store_checkout error

I have installed Nb_store module successfully . But At NB_STORE_PRODUCTLIST in Mini Cart when i click on GoTo checkout it go to url :-http://localhost/tabid/93/Default.aspx and server error is displayed as when i configure this url manually in address bar to :http://localhost/dnn6/tabid/93/Default.aspx it shows the page that is suppose to. How to change this url