How to upgrade Samsung Galaxy S froyo to gingerbread XWJVH

Files you need :

Fimware XWJVH : Download

Driver Samsung Galaxy s installed on your computer in order to can be read when connect to odin : download
Odin 1.3 : download
Download Pit 512 : download  

if your computer has been installed Kies please shut down first of all if it is not possible is often problematic in that connection failed. to not bother, just delete Kies and install the drivers