The first two drivers(OmniVision 3.7) are same and not like original.
The third is empty and last one(OmniVision 3.6) is a little bit different with first two.
Yes i tried all three of them, and the only thing i got them when i turned on the camera on the phone was, "another program is using the camera, please close it and try again!".
I think it's because the drivers are not for S500i..