Alright Alllright, I see your problem....I don't have this problem because I have an L9 769...but I have contacted the base ROM dev and he said he would try to fix it...but it is an issue still on both, sorry for the inconvenience
/external_sd/OTA-Updater/download/ROM/*Insert UltraRom File Here*
Thanks to @kuma82 for providing the base!!! You can see his rom in action here: http://forum.xda-developers.com/showthread.php?t=2468880
Thanks to @Sphax for letting me use Unlimited Boost! See it here: http://forum.xda-developers.com/showthread.php?t=1873234
Thanks to @wlado93 for boot.img and extra files for p760 conversion!!!!
Same here, but you are still a Dev for at least doing what you do for this phone... I still have a long way to go but this, for me, is the first step