it says 1.0 my patch is 1.0

hi i need help with updating my cod4 i can't find "auto update" button or what it is and also i've downloaded a map from downloads --> maps --> cod4 and i can't find the map when i've unzipped i can find the map im unzipping but not the folder i should the the unzipped folder in :( help me...

i've been searching for codjumper maps for over 3 months and finally found them, but when i've downloaded it and extracted it i can't find the map usermaps in cod4 activision map is there another name for a map or what please could someone explain?