Will someone please help me figure out why the model won't move?

I'm making a randomly generated map that places nodes randomly throughout the map that will place down trees but it will not work for some odd reason the tree moves to the workspace but then the position doesn't change i've tried using :MoveTo and TranslateBy and both didn't work

http://www.roblox.com/Generation-System-place?id=192403853

heres the game its uncopylocked so you can see the code

node placing script

while wait(0.15) do 
    if game.Workspace.Nodes.Value < 75 then

script.Choose.Value = math.random(1, 2)

if script.Choose.Value == 1 then
local test = game.Lighting.Spawn:Clone()
test.Parent = game.Workspace
game.Workspace.Nodes.Value = game.Workspace.Nodes.Value +1
test.Position = Vector3.new(math.random(1, 148),-8.5, math.random(-148, -1))
else
local test2 = game.Lighting.Spawn2:Clone()
game.Workspace.Nodes.Value = game.Workspace.Nodes.Value +1
test2.Parent = game.Workspace
test2.Position = Vector3.new(math.random(1, 148),-8.5, math.random(-148, -1))   
end

    else
        end
end

script that spawns the tree

local Spawn2 = script.Parent
local tree = game.Lighting.Tree:Clone()
wait(1)
tree.Parent = game.Workspace
wait(1)
tree:TranslateBy(Vector3.new(script.Parent.Position))

if anyone could please help me figure this out that'd be great