Yay! My first (crappy) tutorial! *TUTORIAL NOTES* You must be in 3.03/3.10 OE-X This could semi-brick your PSP. 1. Get into recovery mode. 2. Select Advanced. 3. Go to Toggle flash0. 4. Using your PC, locate your PSP's flash0 files. 5. Once your in your flash0 folder, go in the vsh folder. 6. Then in the resource folder. 7. Make sure you back up the original system_plugin_bg.rco file first. 8. Overwrite the existing system_plugin_bg.rco file with the system_plugin_bg.rco found in the custom XMB you downloaded. 9. You can now exit recovery mode. 10. Restart your PSP, and you should have a custom XMB wave now.