I'd like to help, but I'm confused on a few points there.
You have TS2 Mac, but I don't know what that is exactly. Is it the equivalent of TANE or one of the earlier versions of Trainz? It's important because Kauai 2008 <kuid:68213:100008> should be compatible with anything from TRS2004 up to TS12 (at least it is in PC versions). However it isn't compatible with TANE, or rather TANE isn't compatible with it due to a new map file format required by TANE. It downloads the CDP and installs it OK, but when you come to opening the route, there is no ground map or scenery showing. Is that what you're seeing?
To overcome that problem I recently released an update called Kauai 2008 in TANE <kuid2:68213:100008:1>, which does install and load OK into TANE.
So if TS2 Mac is TANE, try "Kauai 2008 in TANE" instead of the original Kauai 2008. If not, I am happy to send you a CDP of the original Kauai 2008 to try. Let me know how. But since I never tested that route in any Mac version of Trainz, I can't say what it will do.
~ Deane
p.s. I see you support spelling, grammar, and punctuation, so can I point out the spelling error you made in my forum nickname?