auction mod configure

I put this here because I simply can't put it anywhere else that might be appropriate: I have got the auction mod, with the help of Babelfish, and copied all the files over. In the install.txt there is the following:

shopping_cart.php changes

Find these line:

  case 'add_product' :

and immediately after add

I cannot find this line in any file called 'shopping_cart.php'. Can someone give me some direction here. This is driving me mad.

Well, I found the line in includes/main_cart_actions.php, which makes sense to me.

no it is in the shopping_cart.php, i've had the same problem

http://www.zen-cart.com/forum/showthread.php?t=36354&highlight=auction

anyways, i dont like one thing about this mod.
if an item has a buy it now and someone makes a bid, it will send the item to the shopping cart (At the price of the buy it now)... thats awkward. if someone is bidding, then he definately not interested in buying , so why put it in his cart...