How do I make the animation work?

I bought the model from PlaceRebuilder for the snow ball fight, but the animation didn't work since it mentioned it in the DESC of his model. So, I made my own, but it didn't do it correctly. When I want to make a snowball, instead of picking it up from the snow on the bottom, it makes the play go up a little and gets the snow ball, and for tossing it, it doesn't do the animation for that either. This is the script and my animation ULR and the model PlaceRebuilder made:

wait(1)

enabled = true
Tool = script.Parent
handle = Tool:WaitForChild("Handle")
local player = game.Players.LocalPlayer

local maxammo = 4
local ammo = 0

local screen = Instance.new("ScreenGui",player.PlayerGui)
local gui = script.Parent:WaitForChild("SnowballAmmo")
gui.Parent = screen


local humanoid = player.Character:WaitForChild("Humanoid")
local toss = script.Parent:WaitForChild("Toss");
local tossAnm = humanoid:LoadAnimation(toss);
local make = script.Parent:WaitForChild("Make");
local makeAnm = humanoid:LoadAnimation(make);

function updateGui()
	gui.Amount.Value = ammo
	if (gui.Amount.Value < 1) then
		script.Parent.Handle.Transparency = 1
	else
		script.Parent.Handle.Transparency = 0
	end
end
updateGui()
Tool = script.Parent
local MAXDISTANCE = 43;

function fire(mouse_pos)

	-- find player's head pos

	local vCharacter = Tool.Parent
	local vPlayer = game.Players:playerFromCharacter(vCharacter)

	local head = vCharacter:findFirstChild("Head")
	if head == nil then return end

	local launch = head.Position + head.CFrame.lookVector*2
	local delta = (mouse_pos - launch)
	local dir = delta.unit
	local missile = script.Parent.Handle:clone()
   	missile.Anchored = false
	missile.Name = "Snowball"
	missile.Transparency = 0
	missile.Killer.Value = game.Players:getPlayerFromCharacter(Tool.Parent)

	missile.Position = launch
	missile.Velocity = dir * 200 + Vector3.new(0,20,0)
	missile.PelletScript.Disabled = false
	missile.CanCollide = true
	
	missile.Parent = vCharacter --game.Workspace --.Game.Trash
end

function onButton1Down(mouse)
	if not enabled or script.Parent.Handle.Transparency == 1 then
		return
	end
	local e = ammo
	if (e > 0) then
		enabled = false
		mouse.Icon = "rbxasset://textures\\GunWaitCursor.png"
		ammo = e - 1
		updateGui()
		tossAnm:Play();
		script.Parent.Handle.ThrowSound:Play()
		wait(0.25)
		local targetPos = humanoid.TargetPoint
		fire(targetPos)
		wait(.5)
		mouse.Icon = "rbxasset://textures\\GunCursor.png"
		enabled = true
	end
end

function isOnSnow()
	local ray = Ray.new(script.Parent.Parent.Torso.Position,Vector3.new(0,-4,0))
	local hit = game.workspace:FindPartOnRayWithIgnoreList(ray,{script.Parent.Parent})
	if (hit and hit.Name == "Snow") then
		return true
	end
	return false
end

function keyPressed(key)
	key = key:lower()
	if (not enabled) then return end
	
	if (key == "e") then
		local e = ammo
		if (e < 4 and isOnSnow()) then
			enabled = false
			makeAnm:Play()
			ammo = e + 1
			updateGui()
			for i = 1,8 do
				humanoid.WalkSpeed = 0
				wait(0.1)
			end
			humanoid.WalkSpeed = 16
			enabled = true
		end
	end
end

function onEquippedLocal(mouse)
	player = game.Players.LocalPlayer
	if mouse == nil then
		print("Mouse not found")
		return 
	end
	mouse.Icon = "rbxasset://textures\\GunCursor.png"
	mouse.Button1Down:connect(function() onButton1Down(mouse) end)
	mouse.KeyDown:connect(keyPressed)
end

Tool.Equipped:connect(onEquippedLocal)

Anim and Model:

Toss Animation: http://www.roblox.com/Toss-Anim-item?id=262087197

Make Animation: http://www.roblox.com/Make-Snowball-item?id=262069382

PlaceRebuilder's Model of SBF: http://www.roblox.com/R2D-Snowballs-item?id=219468856

Hope I explained it and gave all the things I need to fix this script :D