I'm confused. (Doesn't take much ...!)

Is flashing the same thing as unlocking? And if not, how can you unlock a K800i CID 53 using JDFlasher / FAR Manager?

I seem to have successfully managed to flash three separate things (for want of a better word - what are these 'things' called anyway...?):

1. K800_R8BF003_FS_EUROPE_5_RED53.fbn

2. K800_R8BF003_MAIN_GENERIC_WI_RED53.mbn

3. and a custom pack consisting of:
CONTENT_DOWNLOAD_HOOK.itm
Customize.xml
FM_PICTURES_HOOK_3.itm
FM_SOUNDS_HOOK_3.itm
FM_THEMES_HOOK_3.itm
FM_VIDEOS_HOOK_3.itm
GAMES_HOOK_3.itm
MEDIA_PLAYER_HOOK_3.itm
ORG_APPLICATIONS_HOOK_3.itm
preloaded_config.xml
SETT_RINGTONE_HOOK_1.itm
SETT_SCREENSAVER_HOOK_1.itm
SETT_STARTSHOW_HOOK_1.itm
SETT_WALLPAPER_HOOK_1.itm
VIDEO_PLAYER_HOOK_1.itm

...and the phone APPEARS to have now been debranded. But it's still locked. And pressing the joy stick produces the error "Errors occur in the menu.ml file. This may render the menu unusable"

So how can I unlock the phone and fix the menu.ml error?

Any ideas anyone?