As long as the job is still in your print queue you can retrieve the original files from VersaWorks.
To do this open the VersaWorks program folder in Windows Explorer. Typically this is listed under Program Files on you "C:" drive.
So, to find your files:
C:\Program Files\VersaWorks\VersaWorks\Printers\"YOUR PRINTER"\Job-A\"YOUR FILE NAME"
Inside the "Job-A" or "Job-B" folder will be a list of folders with the same name as the file in the queue. Inside each of these job folders are the files VW uses to print the file as well as the original EPS, TIFF, PDF, JPG, whatever, file you originally sent to VW.
Simply select the file and save a copy wherever you'd like