puck - if you get an abc version of the tune from one of JC references, there are several utilities that will transpose it for you. For example if you have Windows theres ABCTools. Open the abc tune, select Headers/Transpose Key Signature, fill in the details and the transposed version will be on the Results tab. (this program is just a simple self-extract install, nothing else needs to be done).

If you're using a Mac let me know and I'll try and recommend something for that.

Mick