Mac:- Unfortunately, the OP's image has not been displayed... ArmoredMonster is relatively new to the forums and is still learning the ropes.
ArmoredMonster: - You'll need to find an online host in order to post a link to your screenshot to display it here.
I have my own websites, but many here use image-hosting services like ImageShack, TinyPic, etc.
Believe you can also link to the Trainz Gallery service associated with your MyTrainz account as well, though I haven't tried this myself.