go into recovery mode then advanced then usb (flash 0)
then copy all of it to ur computer as a backup
then go into vsh then resource rename whatever file you want to
system_plugin_bg.rco and place and over right
then go back and ur done do the same for the 1-12.bmp
rename to system_plugin_bg.rco
once in usb mode flash0 -- vsh/resource/ then replace with the current
Note: ALWAYS BACK UP YOUR FILES FIRST!
well have fun- yes it does work on all custom firmware!