Yes, another noob. I have the stock by attributes mod installed.

I have the following settings in the stock portion of the admin:

Check stock level true
Subtract stock true
Allow Checkout false
Mark product out of stock ***
Stock Re-order level 5
Show available stock level in cart when less than order false
Products status in Catalog when out of stock should be set to 1
Show Sold Out Image in place of Add to Cart 1
Product Quantity Decimals 0
Show Shopping Cart - Delete Checkboxes or Delete Button 3
Show Shopping Cart - Update Cart Button Location 3

But when I checkout after selecting an item with more than on hand, a bright red notice says:

Products marked with *** are out of stock or there are not enough in stock to fill your order.Please change the quantity of products marked with (***). Thank you

In the shopping cart screen, which is cool, but zencart still allows me to press the
goto checkout button and continue the checkout process, even though the product is out of stock.

What am I doing wrong?