first of all, i apologize for my bad english... saying that, i'll start to explain my problem
i'm traying to make an arcade controller with my ps3 controller, but i got a problem with it...
this is my ps3 controller board

and this my controller conductive filme

it have 20 connectors (sorry if that isn't the right word for it), i'll number it from the down left to the top right [first picture]
my first guess was:
1+4= L2
11+4=L1
2+4= ↑
12+4=←
3+4=↓
13+4=→
4+14= ??? (some kind of not enabled buttom)
14+5=PS button
15+6=select
15+16=Start
7+17= ??? (some kind of not enabled buttom)
7+8= square
7+18=X
7+9=circle
7+19=triangle
7+10=R1
7+20=R2
but when i test my arcade controller it doen't work (exept ps buttom)... i'm not connecting the "some kind of not enabled button"
L3, R3, and analog sticks works perfect
i'm doing somethig wrong, but i dont know what it is..... i need some help with this, it's getting me crazy