Tony,
I don't have a 6.1 install in front of me at the moment, but if I am remembering things right, I think 6.1 came with the oracle oci drivers either in weblogic.jar or referenced from its manifest Class-Path.
If you are not using any weblogic stuff in this code, then
you should just take it out of your classpath. Otherwise, you could try moving it to the end of classpath....