How do you make a ImageLabel the player's profile image?

I have seen it done before in games where your player profile image is on a ImageLabel, how exactly do you do this? I researched it a bit and couldn't find any roblox wiki posts but I did find this:

----------------------------------------------------------------------------------------------------
--Insert VARIABLES Below
----------------------------------------------------------------------------------------------------
p = script.Parent.Parent.Parent.Parent.Parent
playerimage = script.Parent.PlayerProfile
----------------------------------------------------------------------------------------------------

playerimage.Decal = "http://www.roblox.com/Thumbs/Avatar.ashx?x=150&y=200&Format=Png&username="..p.Name

I tried this in a script in a ScreenGui in the player's gui and it didn't work. Am I doing this wrong or is there a better/new way?

Close.. But

playerimage.Image=('http://www.roblox.com/Thumbs/Avatar.ashx?x=100&y=100&Format=Png&username='..p.Name)