Hi!
I'm owner of Dell Latitude D630, Intel x3100 (1280x800) and I have the same problem with 10.7.5 OS X instalation.
I followed the instruction on http://www.osxlatitude.com/edp/documentation/pre-installation/ ,
downloaded and executed myHack application, downloaded Bootpack (Dell_Latitude_D630_Intel-lion.zip)
but myHack didn't ask me a question to put on the flash drive my custom D630 Bootpack.
Thus,
1st - i made usb with GUID support and standard myHack Extra folder.
2nd - i replaced standard myHack Extra folder to Extra folder from Dell_Latitude_D630_Intel-lion.zip.
3d - i made usb with MBR support and replace standard myHack Extra folder to Extra folder from Dell_Latitude_D630_Intel-lion.zip.
But i cant see my HDD on instalation process in any of this combinations, i see only DVD and flash drive.
What a have to do to install 10.7.5 on my D630 ?
p.s. Bios settings also was made like this https://osxlatitude.com/index.php?/topic/1868-bios-settings-d630/
p.p.s romanboy, do you fix this problem?