I spotted the missing fin markings myself. I'll check it out later & a simple fin flash should not be at all difficult. As the Mustang III is an official AvHistory bird I assume it might not be possible. It depends how the textures were assigned.

I will keep trying, but so far, when I use windows paint to place the tail flash and then resave the texture as a DXT1 Oaque, bootup the plane, I have no textures on the fuselage. I know it must be some simple mistake, so I will keep trying.
HawkerTempest Thanks for the picture offer, found one of similar plane.
Hagar   Thank you for the example.  I will persevere and I will prevail.  Boy, did that sound puffed up or what? Must be getting snotty in my old age.

                           Fido   

I'm no artist or I would take the time to do it myself. For edited textures, make sure you're saving them in the correct format with the exact file name of the original & to the correct location. The problem is almost certainly one of these or a combination. When messing around with textures I always take a backup copy of the original Texture folder first in case of mistakes - then work from the original.

Hi Paul. Basically it needs the fin flash added. Tempest also suggested changing the upper wing roundels to the "B" Type. I think if it's worth doing these should be authentic & it might be best for him or Fido to help with an image.

PS. I was hoping to encourage one of the guys to do it themselves with my usual crafty method of gentle persuasion combined with some downright bullying if necessary. You never know, we might have another budding  repainter amongst us.

Well Fido. I'll leave Tempest to cast his critical blearies over it on the authenticity front.

It looks mighty fine from where I'm sitting. Well done.

That's looking fine Fido pal. I've been trying to find out the serial code for that Mustang, but although I have found a number of aircraft from that Squadron (316 Warszawski Polish Squadron) I can't find this exact aircraft.
The upper wing roundels are the correct size but need the white painting out with blue to make them into "B" Type as was standard in June '44. "C" Type was used post Jan. '45.
Aircraft repainting is something I have always wanted to do but all my efforts end up a grey blank mess

I think that SZ-B was FB223.

Cheers Paul