Ok everyone, I know lots of people who are not sure on how to install a CXMB on there m33 psp so I am gonna give you an easy to understand Tutorial. 1.Back up your flash0.( This is important as it maybe needed later.) 2.Connect your usb cable to your pc. To back up your flash0, get to the recovery menu of your psp. 3.Go to Advanced-Toggle USB(flash0) 4.Then you will get up a window on your pc with the folders: data,dic,font,kd,kn,vsh. 5.Select all of these folders and COPY (I repeat COPY-NOT CUT) them to a safe place on your pc. Dont close the window. 6.Now you are ready to go. I recommend using either http://www.consolespot.net/index.php?network=xmb&page=1 (u need to sign up). 7.Download the CXMB you like. 8.Unzip the folder and copy all the .rco files in that folder to your resource folder (found in vsh folder) on your flash0. 9.Now just go back on your psp and exit recovery. 10.You should now have your very own Custom XMB I hope this helped at least 1 or 2 people and i wll be very happy. I know it isnt the best Tutorial but i wanted to design one that i hope is very simple to follow. Thanks for reading and i hope this is of use to you. Now, for all those with a 3.40 oea CXMB, i recommend using the RCO Updater. Download the file from here http://www.sendspace.com/file/c5bnjl and then: 0. Read the read me file first! 1. Backup your Flash0 folder on 3.5X M33 to your pc 2. Unzip the contents of this folder to a new folder. I would recommend this as there are around 30 files. 3. Copy the contents of the 3.40 oea resource folder to the new folder. 4. Double click, 2 clicks to upgrade.bat 5. Wait for the process to finish. 6. Copy your theme to /vsh/resource in flash0 Well done to the guys who made this super tool!