How can I add products field and list it just below the default products fields?

Hi Lyle;
Ubercart shipped with several default product fields as follows:
Display price
Image
SKU
List price
Cost (seen only by 'administer products' permission)
Sell price
Weight
Dimensions
Add to cart
I want to add some definitions as follow:
Size
Color
Package(like box, carton, etc)
Min. order quantity
The Size and Color can be done by adding ubercart attributes because they have some options and the customers may pick one from the selection list.
But as regard the Package, I do not want the customers to pick one from a selection list or fill in a textfield because the package method is according to different kinds of products, and only the site admin or content editor can decide which package method should be for a given kind of product.
I tried to add a package product field via CCK, but it show up far away under the default fields like Weight, Dimension, and Price. Its' ugly and looks like these definitions are talking about different things.
Can you tell me how can I list the CCK added customized product fields list just below the default product fields? I believe there must be some site using Package product field, do you have a demo? or can I find a module or patch to add some product fields to the list of ubercart default product fileds?

Thanks in advance!