[HELP] Rooting HTC wildfire S A510e

hi Folks'
I am having a HTC wildfire s a510e of carrier IUSACELL(no simlock).Iwant to unlock my device but unable to do so because the HBOOT version i am having I think is not supported as the code fastboot oem get_identifier_token gives me an error code of command error. I am unable to find suitable ruu to update my HBOOT and no OTA was delivered.Here is information of my phone.
MARVEL PVT SHIP S-ON RH
HBOOT-1.03.0000
MICROP-0451
RADIO-7.47.36.19M
JUN 2 2011,16:17:50
I am unable to use <code>get_identifier_toke</code>.Please Help me to find suitable RUU for my device so thAT i can update HBOOT and unlock its bootloader.
Thankyou
also behind battery its PG671100.

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