What's New in Omega Drivers?
v2.6.83
[*] Based on the Catalyst 5.11 Official drivers.
[+] New, more advanced installer! Hope you like it.
[+] Added support for a few more 3rd party ATI cards.
[+] Individual tweaks for Standard and FireGL cards, that should solve the FireGL problems with OGL.

What's new for ATI Tray Tools?
v1.0.4.780

[+] Added option in atitray.ini to enable old I2C control method. Used prior 750 build.
[+] Added option in atitray.ini to turn on OLD BIOS detection procedure
[+] Added support for F75363/F75363SG sensors
[+] Added new option to configure quality of Adaptive AA. You can select from two modes. Performance and Quality.
[+] Added new option to enable "High Quality AF". Enabling this feature may impact performance. This feature is not supported by all ATI graphics cards. (it seems only R5xx series can handle this feature)
[+] Added experimental support for Digital Flat Panels and Mobile LCD Panels.
[F] Fixed error when ATT tries to read clocks and unable to start if clocks equal 0 even if overclocking was disabled.
[F] Fixed error in Game Profile creating procedure when the game name contains ampersand chars
[F] Fixed bug with wrong BIOS detection procedure[*] Redesigned Direct3D and OpenGL configuration dialog boxes[*] Updated TV/Display module. Added experimental support for old Radeon boards (less than 9500)[*] Improved ATT shared memory update procedure

ATI Catalyst Omega v2.6.83 Driver For Win2K/XP