You cannot make desktop manager find an .alx file on the phone.
This is supposed to be done from the PC.
When the people said copy the .pbd file, thats ALL you copy.
remove the files from your phone and start again.
follow the instructions you were given and it will work.
"That's it then. Cancel the kitchen scraps for lepers and orphans, no more merciful beheadings... and call off Christmas."