thanks for the good comment.
2.) About the Mods, basically, they're not legal on the demo version, but they are on the full version.
3.) About the courts, you can change the .jpg files, but you cannot simply mod the existing court, except the clay one.
4.) It's possible, but not too easy, but if u know how to use Photoshop (or any similar program), it wouldn't be too long... But as I said just before, u cannot directly access these files
I'm not sure what to explain about how to change graphics.
Just take the files, modify them in the way you want, and put them back in the .pak file, or put them in the good subdirectory, within the windows explorer...
I just added this to "HowToMod.html" :
"/!\ Important: the directories in the .Pak file are relative to the Tennis Elbow 2005 root directory, not from the Data subdirectory. Ie: if you want to export the Menu directory, it should be to : "[TE2005 Dir]\Menu", not "[TE2005 Dir]\Data\Menu"."
If u have any more question, I'm there ...