Hey guys sorry it took me awhile to get back, busy day. I just checked out the multiplayer thing and it turns out I was incorrect - the multiplayer versions of the track do indeed remain un-patched. It's probably just a matter of patching the szs files with "_d" at the end.
Sorry about the confusion. I could've sworn I read that info straight from the authors but, alas, I made a boo-boo. I'll check it out tomorrow and once I'm sure of the fix I'll post an update.