Help Needed Badly! waypoint error

I have NZP for the PSP. I download maps that come with two files. The .bsp and a file with no attachment or anything to it. So i dont know where this file goes. Ive been told it goes into data but it still doesnt work. I tried adding .dat to try and fix it but still no. I have been told its a waypoint, and even then it doesnt match the NDU waypoint. If you know what im talking about, i'd appreciate the help. Ik this may be dead. but worth a try. thanks!