Acer M1100 vt-x support

Hi, I'm looking for a bios that support virtualisation for an Acer M1100
The information I found for my current bios is :

IOS Type:

Phoenix-Award

BIOS Date:

June 25th, 2007

BIOS ID:

06/25/2007-RS690-SB600-6A669FK8C-00
BIOS OEM:

This BIOS is exclusively for Acer only <R01-A1> - 6.00 PG

Chipset:

Athlon 1100 rev 0

SuperIO:

Unknown

Manufacturer:

Acer

Motherboard:

Aspire M5100

Can someone point me to the right bios with link and some explination how to do this ?
I'm a novice concerning flashing

I found some threads about this mainboard but no working links