The file either had some kind of protection or it was bs. So i just took the textures and voila the utx. Btw 3-4 buttons have white alfa so their transparent = not visible.
Just make your own.
Edit: The back and fore that the code has are basically 2 actions:
back="utxname.button_normalOn" (texture when you click the button)
fore="utxname.button_normal" ("1st" or the normal texture)
Now if you make one more button with the following name: utxname.button_normal_over . Then this texture will be displayed when the mouse cursor is on the button area.
Take a look at l2ui_ch3.utx to see the buttons.
IpotoniC's post in Mouse Over Effect was marked as the answer