Both of the suggestions given are regarding the wrong type of job... Distribute Image is not the same as Scripted OS Installation. And the information is just wrong anyways. A properly constructed Unattend.xml file will let you reimage without needing to touch the computer after the image completes, just like it should allow you to run a scripted installation without needing to touch the computer. You DO want that option checked, unless you actually want to manually fix your own Unattend file for computer names and so on.
Getting on to what you're actually asking about, though, what you're probably looking for is the AcceptEULA (true), WillShowUI (Never), HideEULAPage (true), SkipUserOOBE (true), and SkipMachineOOBE (true) settings. If you have those properly set in your XML file, your scripted installation will happily move along.