[a_k_s_h_a_y]

if u flash FS u must customize it !!!!!!!!!!
or else phone won't start.. ! that's all ! because it will says customization error
then u willl hv to shut it down and flash those customize.xml and preloaded_config.xml !! better flash these 2 files after flashing FS and start the phone !!

yes if u flash FS then again u have to flash w880i acoustics and camera drivers and flash menu all over again

its ok do it !! not a prob at all !
now just find a FS and flash it ! then customize it too !

yes both skins and visulization will work ! this time flash only FS coz u already flashed Main

it needs customize.xml and preloaded_congif.xml files to start the phone
FS won't have this files... that's why it won't start !
u flash them using FSX or own custpack method to its right place !!
the phone will start !!