Sorry, I did not see it said mac. I'm at my work computer so I cant copy a link so Please look under dependencies> cabs> trainz 2012> GE Widecab type 3. You will find what you need.
Edit: I fix my work PC so now I can copy the link: http://jointedrail.com/index.php/downloadable/download/sample/sample_id/233/ Like yutzk said the :2 at the end is just a new version of the file you need.The config file will say you need kuid2:45324:90312:1 but trainz will see you have a newer version kuid2:45324:90312:2 and use that file.
Sorry, I did not see it said mac. I'm at my work computer so I cant copy a link so Please look under dependencies> cabs> trainz 2012> GE Widecab type 3. You will find what you need.
Jeff
The :1, :2 at the end just means the :2 is a newer. :2 is more than likely the TS12 dep, the :1 is the 09/10. MAC one is just a modified version for MAC use.