When you got to
https://nr2k3.weebly.com/all-tracks.html and click on the track you want, it will take you to another site for the d/l.
For example, when you click the "
Greenvil_GN64" it takes you to a deltasimracing.com page where you can then d/l the track.
Not sure what's up with the cookies though... I got there all the time and never have it ask for cookies so it could be something with your browser?
Good luck, hope you get it figured out and come back to let everyone know what it was so the next person can find help.