Populating a field in a new node

A little help, please:

In Ubercart, there is currently no satisfactory way for a user to upload a file during the checkout process. Ok...I can live with that (sadly).

As an option, I post a notification after checkout that states "to upload your file click here", which directs the user to a new Add Content page, with a file upload CCK field.

Using Rules, is there any way I can populate another blank CCK text field on that new node with the Order ID from the previous page (using Tokens perhaps?)

My thought is I could then create a View that would at least list the File Upload and the Order ID...and if my admins have to manually cross-reference that, so be it....

Node Reference would be great, but of course, it doesnt work with Ubercart.

Any thoughts? Im just stumped.

Thanks a ton!

-Todd