Mike I also fail to see any jet in your comparison images,I even used a magnifying glass and could not see anything.
Also I think your arrows point to two different places.
You must have a fantastic screen as I could see nothing in those two images.

In your original negative image I could see some lines but to me looked like some artifact.
They don't to me show up in your colour images at all to me.
There has been no sign of a jet in any image of this galaxy I have seen.
Have you been in touch with any of the AAT astronomers on this.
Great image all the same.
Cheers