You can change the sort order of a bundle by simply clicking and dragging the items to the order you like using the product edit page.
To Change the Sort / Listing Order of Bundled Products:
1. Log in to DPD
2. Go to the Product List
3. Find the bundle product and click edit
4. On the edit product page, scroll down to the list of included products.
5. You'll notice a box around each product. Simply click on the product name and drag it up and down while holding the mouse button down.
6. Once the order is how you like it, click save to save the new sort order.
The order they are listed on the edit page is the order they will be listed in the combo on the delivery page, emails, invoices, etc.