Problem making torfs/.big files

Hello can someone please tell me how to make the torfs/.big files correctly.
When I use an allready existing file etc. Jers_OTT_01.big and change the fsh file it will work in game.
But when I try to change the name for example "Jers_OTT_02.big (And all the files in that bigfile) it will show a transparent torf in game????

What am I doing wrong?

Found the Solution here: http://www.dsgambelluri.ignitiondomain.com/Addon%20Tutorials.html

I countered an other problem when I've solved this: http://www.dsgambelluri.ignitiondomain.com/Addon%20Tutorials.html
I did Detroit Red Wings (6 Jerseys) when I try to load Red Wings at home with "alternate" jerseys the game crashes..`? SO basically Jerseys from 1-4 or in gamefiles 0-3 works just fine but when I use Jersey 4 and 5 the game crashes..?