STOCK ROM 2.2.2 v10e in zip format for LG p500 / optimus one
I cannot provide any further support as I don't have this device with me now.
It is in zip format.
Follow these steps:
1. copy the zip in sdcard
2. boot into recovery pressing (home+vol down+power) button simultaneously
3. wipe data/factory reset
4. advanced -> wipe dalvik cache
5. go back to Main menu -> mounts and storage -> format system
6. install zip from sdcard -> select GRI40.zip