you are not doing right
walk to a tree, the script will grab the apple and remember is location, now you have choice, write down the name on the apple and feed ur Pup or feed ur Pup.
do this for all 16 trees, once you are done. pick an apple from the tree and run near they other 3 group, the script will throw the apple at the right tree. repeat 7more times.
Voila you are done.
If you go back a few post I posted the mod to help track the location.