The domestic production activities deduction can be used to lower your taxes if you are an Independent Software Vendor doing software development in the United States. Have your accountant look into it!
They’re both now in the downloads area. The code is the same as it was in osCommerce 2.2; all that was changed was installation instructions.
You can read about all my osCommerce work on my website. I hope it helps your osCommerce based business!
One of my clients has several intermediate statuses that an order goes through before getting delivered. They don’t want the customer getting an email on each of these transitions, and don’t want to have to open up the order edit page every time they make a status change. So I created Zen Cart Quick Status Update to allow them to change the status of an order simply by selecting it in the orders screen (Admin->Customers->Orders). It’s available as a free download from the Zen Cart Free Software Add Ons area.