OK, that worked, but the first underlined entry in the install.rdf file probably doesn't have to be changed as it just reports that I have JAVA Console 8.0 not 7.0.01 which it is (I thought that a reference to firefox not the JAVA Console version).
OK Checked that on my other system and changes to the first line aren't required and it will report the correct version of JAVA Console (not 8.0 as in my image).