confusing build numbers...

[vigneshvickyvic]

Hi everybody...
Im very confusing by the build numbers,, please help me to find the correct ics build number for ftf download...
MODEL: LT26W(acro s)
SI:1266-1551
I THINK ITS HONG KONG VERSION(not sure)
Please suggest me correct ICS build number, bcz I need to flash

[Thommo]

1266 1551 is Hong Kong Generic White Acro S LT26W

1266 1552 is the Black version of the above

A selection of firmwares are here and there is 1 Generic HK version

[vigneshvickyvic]

Ya buddy.. But I need official ICS firmware, plz suggest ics build number