nah u gotta use flash0 and put the files in there but there is a very large risk of bricking ur psp thats why u have pandora oh and if u dont like the theme or u just tired of it than just use pandora to go back to normal
FIRST OF ALL. u gotta get the file(of course) change ur usb device to "Flash0". back up ur flash0 on ur comp. delete ur "dic" folder and just put the theme files in. WARNING.this may brick ur psp.have a pandora battery just in case