Paul,
Bless you! Yes, it is the Bandoggs version that introduced the song to me and I've never been able to get the phrase that came after "when Frenchmen fight" i.e. "when emperors die." So you've already resolved many a sleepless night. I may be able to figure out the rest now with that bit filled in but I'd still appreciate you having a go at the full lyrics.
Thanks. MarcB