I've used the blogs by Michael Niehaus to get MDT 2010 and MDT 2012 LTI deployment wizard application selection profiles working.
I'm now running MDT 2013 and when following the instructions here: http://blogs.technet.com/b/mniehaus/archive/2012/09/04/revisiting-lti-deployment-wizard-application-selection-profiles.aspx, the MDT Wizard Displays the error: "No task sequences are available (TaskSequences.xml does not exist, is empty, or is inaccessible)."