If you are referring to the A07 listed on the Dell Alienware Support sight. A08???
I have downloaded the A07 (Alienware X51 ALX) with no problems. Haven't seen any changes and I have the same question as you - What does A07 do and why did it jump from A03 to A07????
Alienware Area 51 ALX:
Intel Core i7 Extreme 975 @O.C. 3.4Ghz
6GB DDR3 (1600MHz) Memory
System BIOs: A07
Alienware X58 Rev 13 Chipset
NVIDIA GeForce Dual 295 GTX Quad SLI Enabled
600GB Raid 0 @ 10,000RPM
Alienware Command Center: 184.108.40.206; A08
Dual HD Monitors (Dell U2410 and Alienware 2210)
Creative SB X-Fi Titanium Audio
Alienware TactX Keyboard and Mouse