Hi, sorry but I'm a newcomer and I have no expertise

. Moreover, I'm from Italy so the last updated version of my ROM of my X51v is A04.
I downloaded the ad2p file and extracted it, as request, but when I try to copy the 3 dll files, the pda say me that is not allowed. theese files have some kinf of permmission wich denie the delete of overwrite command.
please, how can I solve this problem so I can try to pair my sony-ericsson BT headset hbh-20?
thank's in advance for your help.