ok so i just posted this in a thread but i feel it deserved to be posted on the thread lists in its own! its very useful for saving information after deleting the home screen app.
so anyone who has a custom recovery, boot into recovery!
tbh i don't know if you can boot into regular recovery and still do this but ehhh!
after your in recovery connect your phone to your computer and open a command prompt
CD in the command prompt to your platform tools *aka the ADB folder*
Example Mine Is: C:\Program Files (x86)\Android\android-sdk-windows\platform-tools
while in recovery "if your using either one of these
2.2.1 or
2.2
go to mounts, and mount the system.
then in the command prompt type "adb push (LG HOME FILE LOCATION) /system/app/
after thats pushed type adb shell
once it shows "/ #" on the command window type "chmod 644 /system/app/LGHome.apk"
once you have done that on your phone unmount the system. then reboot and BOOM! you have your LG home screen back WITHOUT having to format and lose everything
by the way the home apk HAS to be named exactly like this!
LGHome.apk
if anyone needs to know how to get the APK, you can extract if from a rom or i'll be more than happy to give em to you,

JUST KNOW if your on 2.2 you have to get LGHome from a 2.2 rom, and same concept for 2.2.1, get it from a 2.2.1 rom.