Welcome to the boat mate.
Your English isn't that bad, quit good really.
Uninstall the mod you're using.
Go to the main SH4 folder and open it.
Scroll down to the mods folder and open it.
Scroll down to the mod you are using and open. (TMO)
scroll down to the Data folder and open.
scroll down to the Menu folder and open.
Scroll down to the Gui folder and open.
There is a file there called ContLine.DDS
Just change the name to something like ContLineX.dds
I use a name change like this so if I want to undo it I just find the file with an X.
You'll have the tails back.
Magic
Edit I missed the Menu folder, just added it.
