To be clear with you Sam :
1) I have TE 2013 1.0a, ypur patch and the FIX
2) Mods folder doesn't work properly on mac. If you do the installation as you said nothing happens.
3) So I did an installation for your patch same way I did last year. I pastes everything into the data folder and pasted the script folder into the te dir.
4) Everything is fine (courts, nets, scoreboard) except for animations.
I can say to you more. There's something with PAK 3 I suppose.
I know that your patch is for PC especially. But Mac users are a lot and would be great if you could find a solution for us (with help of MANUTOO as well).
I think there's something wrong with /models/anim …. maybe could be a solution to give us this path separately and then let Tennis Elbow load them from /data ? I don't know, maybe I 'm just saying stupiud things but I (we mac users) really love your patch!

Have a nice day! And thank you so much for your incredible job!!