melia your quite right, there is absolutely nothing confusing about the following:
# Replace with
// 405MOD - My Friends: if (!array_key_exists($friend_list_arr['ID'], $aMutualFriends)){
# Around line 113 find:
}
# Replace with
// 405MOD - My Friends: }

My point was, please code it so non-programmers can understand what to do. You must admit the above could have been presented in a less confusing manner.