Hi. When you´ve no hole in the head you can do it like this:

http://www.ginabellousdolls.com/tutorials_2.htm

You also can make the hole in the head after baking,but it´s more work then you do this before baking. I hope I could help you with this Link. and sorry about my english too, it´s just school-english and somtimes i don´t know if it´s right.