SCCM 2007, MDT 2012,UDI Wizard and OSDComputername

Hi there,

I'm a little stuck trying to get the computername into the UDI Wizard from a task sequence. (and domain and ou as wel) I've added the task sequence bellow.

And this is what I get in the OSDSetupWizard.log during the installation:
12:48:33.354 07-10-20122TSVariableRepositoryLoaded variable 'OSDComputerName'. Value = 'TSAMMDBT5C95J'

So the task sequence runs and does it's job but the computer name that gets loaded in the UDI Wizard is still stuck on MININT-%%%%

Can somebody point me in the right direction as to what could be going wrong.