Okay, I just now installed it to TPR's Download Depot. I apologize for the problem.
I searched the DLS and the Depot for that kuid and could not find it. I did find a BNSF Heritage on the DLS, but it was not version 2. I may have hosted version 2 on my old website, but can't find any trace of it on the DLS or the Depot, so it should be safe to host the tree on the Depot at this time.
I really can't imagine anyone still using that old Paintshed reskin anyway, what with all the fine locomotives available today! Let me know if there are any more problems. The tree was made around 2006 era, but I tested it in 2010 with no errors or warnings.