You gotta to have 3.90 M33 for this tutorial.Download CXMB 3.1 here:http://dl.qj.net/CXMB-v3.1-for-3.90-PSP-Homebrew-Applications/pg/12/fid/16297/catid/151Download Themes here: http://download.chipper.se/index.php?dir=PSP/Teman/3.90_M33/ 3.1, custom, CXMB, frimware, fw, M33, playstation, psp, sony, theme, tutorial, XMB