I have been in touch with Paul who kindly replied to my email very quickly.
He said they were made for TC3 and won't work in 2004 so how I have the tender in that version is yet another mystery.
There is also another problem with 2004 that has reared its ugly head, although to be honest it is the wagons that are throwing the wobbler rather than '04'. Having said that the fault is being caused by the way 2004 handles certsin issues with the Chameleon Libraries so it is really a mix of faults on both sides.
I put a wagon made by one of 3 certain creators (who shall remain nameless) into a route, my own West Country Days, and found that on planting it on the tracks a while block window opened telling about the Chameleon problem and offering either Continue or Abort. I tried Continue firt and all seemed well until I placed another box van and it happened again.
So I removed them and got left with a finctionli$void@skin AEC5tVan:Init (), line -1 problem and it won't go away.
Into Maps and deleted the whole route, to the DS and downloaded it again afresh and installed it but again got the same thing....!!!.
I am not one for working in 2010 but in desperation I Imported the download into that and it worked fine, even the old splines that were in it from 2004 days came up fine although there were several Warnings and a few Missing Dependancy notices.
But it dows not solve the 2004 issue... why oh why if the route is deleted and Imported anew does it still have that corruption?
Ah, the mysteries of Trainz....
Angela