Help me in updating to WM6.5

[cannypanky]

I have been going through various fourms this site, all it did was confuse me even more. I want to update to wm 6.5 from 6.1. it would be of great help if anyone can just suggest me the exact file necessary for updating. I am a totally new user for htc. I am posting my device info below. it would of great help for me, since its the first time.

Thanks

My device info.
Touch version : Elfin
Device ID : ELF010050
CID : DOPOD001
IPL : 3.07.0002
SPL : 3.07.0000
ROM Version : 3.07.720.03
ExtROM Version : None
Operator Version: None
AKU Version : 1.2.7
Page Pool : 12 MB
RAM Size : 128 MB
ROM Size : 256 MB
Model No. : ELF0100
Part Number : 99HEH136-00
MCC+MNC : Not found

Thanks in advance!!