Help with ATI driver ?

[KiwiLinux7.10]

Hello , i just installed a lot of updates the system telled me were available and i installed them all. There were a 8.5 fglrx driver that updated my actual 8.4 ,but now i don't have 3d hardware acceleration , help me install the appropiate ati driver for my card which is :

dentification
Vendor: ‎ATI Technologies Inc

Description: ‎RV370 [Sapphire X550 Silent]

Media class: ‎VGA compatible controller

Connection
Bus: ‎PCI

PCI domain: ‎0

Bus PCI #: ‎4

PCI device #: ‎0

PCI function #: ‎0

Vendor ID: ‎0x1002

Device ID: ‎0x5b63

Sub vendor ID: ‎0x1043

Sub device ID: ‎0x3000

Misc
Module: ‎Card:ATI Radeon 9500 to Radeon X1050

Please i really need help here. Many thanks in advance

Look it has changed my xorg.conf file like this :

# File generated by XFdrake (rev 234840)

# ************************************************** ********************
# Refer to the xorg.conf man page for details about the format of
# this file.
# ************************************************** ********************

Section "ServerFlags"
#DontZap # disable <Ctrl><Alt><BS> (server abort)
#DontZoom # disable <Ctrl><Alt><KP_+>/<KP_-> (resolution switching)
AllowMouseOpenFail # allows the server to start up even if the mouse does not work
EndSection

Section "Module"
Load "dbe" # Double-Buffering Extension
Load "v4l" # Video for Linux
Load "extmod"
Load "type1"
Load "freetype"
Load "glx" # 3D layer
Load "dri" # direct rendering
EndSection

Section "InputDevice"
Identifier "Keyboard1"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
Option "XkbOptions" "compose:rwin"
EndSection

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "ExplorerPS/2"
Option "Device" "/dev/mouse"
EndSection

Section "Monitor"
Identifier "monitor1"
VendorName "Generic"
ModelName "1024x768 @ 60 Hz"
HorizSync 31-70
VertRefresh 50-120
EndSection

Section "Device"
Identifier "device1"
VendorName "ATI Technologies Inc"
BoardName "ATI Radeon 9500 to Radeon X1050"
Driver "ati"
Option "DPMS"
Option "XaaNoOffscreenPixmaps" "1"
EndSection

Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultColorDepth 24

Subsection "Display"
Depth 8
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection

Subsection "Display"
Depth 15
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection

Subsection "Display"
Depth 16
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection

Subsection "Display"
Depth 24
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection
EndSection

Section "ServerLayout"
Identifier "layout1"
InputDevice "Keyboard1" "CoreKeyboard"
InputDevice "Mouse1" "CorePointer"
Screen "screen1"
EndSection


So is there a way to roll back the changes i made to the system via the command line ?
If not how can i configure it to run 3D acceleration ,when i check at the HARDWARE and run the config tool it says 3D HARDWARE ACCELERATION with a ticket there ,so i really am not understanding nothing here ?

[minthaka]

You can always remove the new package, from within the package manager, and then to install the older driver. If you didn't install it from a .rpm package, you'll have to visit the vendor's homepage for further instructions.
I had an AtiRadeon card, but hey man, I got rid of it, thanks to God!

[KiwiLinux7.10]

Unfortunately , i have updated the fglrx-kernel-2.x.x (my kernel number) and there is no way back for me. I tried for several hours via the console login,removed the packages installed the old ones. Still nothing. So i got to ATI home page download the proprietary Linux installer ,installed it, and i get the following message error during booting:
No ati driver found in fglrx switching to free ati driver

Anyway it's not the end of the world.I can live happily with the free driver.My only restriction is in the games section,as for other thing they work really well,like COMPIZ,VIDEOPLAYBACK , MUSIC, GRAPHICS and all multimedia things in Linux.
I will reinstall Mandriva after i finish some torrents ,and transfer them to my laptop.

I know what error i made ,i updated fglrx-kernel which i really shouldn't ,cause i had everything working fine.

Anyway i got a lot experience with the command line ,and the urpm commands and its extension by using it for 6 hours without any interrupt