install piratebox on tp-link wp703n issue

hii
it's my first piratebox and i got my tp-link wp703n jast for the PB :-)
i managed to install openwrt without any problem

its seem not recognize the usb drive
so when i follow the steps from [www.piratebox.cc]
I'm getting endless reboot loop

I tried to follow this topic [forum.piratebox.cc]
and after running box_installer_start.hs
i got endless reboot loop

any good idea for solution ??
is there manual install instruction ??

tnx
urinka