Quick Flasher is a simple application for Fat an Slims PSPs with custom firmware 3.71m33 and 3.80m33. This application gives you the possibility of keeping 5 themes in your memory stick and flash them wherever you want simply and confortably. Remember that this software touches files in flash0.

http://forums.qj.net/f-psp-development-forum-11/t-release-quick-flasher-theme-v2-for-cfw-380m33-133381.html