1) First of all, you're going to need Toribash 3.72. If you haven't got it already, download it here.
Will it download the textures I have in toribash 3.9? how do i have to copy the customs?
You need to copy the 'custom' folder from your current Toribash installation and paste it in the 3.72 directory.
and then how to put them in the other toris? /lp 0 /lp 1 /lp 2 /lp 3 ?
/lp 0 Name /lp 1 Name /lp 2 Name /lp 3 Name Make sure you have their custom folder first, of course.