We currently do not support placing a 'reorder' of a previous project and supply new art online. Give us a call and one of our client advisors can set up a custom quote for you so that you'll be able to upload new artwork. We'll need to know which parts need new art.
You can always create and save a brand new project and then upload your artwork and content. You might want to consider renaming the project so that you know the difference for future reorders.
If you need assistance, please contact one of our client advisors