OK, I don't get the error if I use a RFM file instead of a RF file - assuming this to be correct I've changed the wiki entry.

I've also updated the wiki to show how to execute a RuleFlow - not difficult now I know how, but since I spent a while figuring it out thought it worth a mention.

FYI, I have also successfully added the plugin to IBM RAD7 and conducted a few preliminary checks (nice - I can emphasis the "I" in IDE for my current project at work).