I know this has been covered but I can't get any solutions that I've seen to work.
Page numbers for my thesis are upper right but the first page of each chapter should have it bottom center.
I tried using ERT (in LYX) \thispagestyle{plain} and also loading \usepackage{sectsty} and then using \chapterfont{\pagestyle{plain}} after the chapter heading.
I looked at Modifying plain page style and questions on changing position of page number on the first page of every chapter of a book and page number position
I'm using the class from CU Boulder
EDIT: I don't go to CU but I am trying to use the class for my thesis.