Look here:
In english
h**p://mup.anticrack.de/PETut.html
h**p://www.absolutelock.de/construction/infobase.html
and here:
In spanish
h**p://www.crackslatinos.hispadominio.net/miembros/teorias/t241-260.htm
253 Import tables a mano 1/4
254 Import tables a mano 2/4
255 Import tables a mano 3/4
256 Import tables a mano 4/4
Maybe someone has got english version incase you do not understand spanish
