Found these when going through some old CDs and I figured I'd toss them online for anybody that wants them. No idea who created them or where they were originally hosted (though most are likely from Blackhole Motorsports, Kiwi-Dirt, FUO & Fire on Dirt)
http://www.mediafire.com/?dmpb0xrnt6fv30f

Here is what is in the file;


Here is what is inside the DTRSC folder;


Other then the stuff in the DTRSC folder I have no idea anymore if the other stuff is for DTR or DTRSC but it's for one of those two, none of it is for DTR2.