Content Management and Capture

We are upgrading from 9.1.5 to 9.1.9. With 9.1.9 we are using the "paid add-on" for ISIS scanning. We have installed IBM Datacap 9.1.9 iFix 05 on our scan station PC. We have installed the IBM_Dtcp_High_Speed_Scanning_9.1.9. We have installed the Kodak software for the i5650 that we use. When we pull up one of our scan screens in Datacap Desktop, we get a couple of error messages:
1. "There are no images in the batch"
2. General ISIS driver error: -4515 Can't open file.
We can't proceed with our upgrade until we can scan. We need help.  Any guidance is greatly appreciated.