[PrinceOfPersia]

Look
Go to the position of where do you want the lockers to be
Type /save
Go to My Documents >> Gta San Andreas User Files >> samp , You'll see something called saved positions.

Copy part of it

Do not copy the last 0,0,0,0

Copy the middle part

Now go to the cmd of the SANews lockers

And search for the co-ordinates
When you find them, Copy them with the "savedpositions" Co-ordinates

I wish that help
Thanks.