You can either take a screen shot or print out the information from the websource. As for the tracking number...did you ever give her the tracking number (because you should have) and should have it in email records or something? Also, she should be able to look up her own transactions, sent or received and print them out herself.
We're currently having a problem with some packages saying that they're delivered, but...apparently not to our current address even though we have mail forwarding. Luckily Rightstuf will probably be able to track or resend orders but i know when we called the post office all they said was that they were delivered and that's it -_-;