ati radeon 9225 driver problem on slackware 12.0

Hi,
I want to change my screen resolution to 1280x1024 ,but i think default drivers dont support this.This is why i attempted to install ati drivers.However I'm getting an error message as below :

Code:

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Uncompressing ATI Proprietary Linux Driver-8.28.8.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
==================================================
 ATI Technologies Linux Driver Installer/Packager
==================================================
Detected configuration:
Architecture: i686 (32-bit)
X Server: Xorg 1.3.0

Detected version of X does not have a matching 'x130' directory
You may override the detected version using the following syntax:
    X_VERSION=<xdir> ./ati-driver-installer-<ver>-<arch>.run [--install]

The following values may be used for <xdir>:
    x430        XFree86 4.3.x
    x430_64a    XFree86 4.3.x 64-bit
    x680        X.Org 6.8.x
    x680_64a    X.Org 6.8.x 64-bit
    x690        X.Org 6.9.x
    x690_64a    X.Org 6.9.x 64-bit
    x700        X.Org 7.0.x
    x700_64a    X.Org 7.0.x 64-bit
    x710        Unknown X Window
    x710_64a    Unknown X Window
Removing temporary directory: fglrx-install
bash-3.1$

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Is there anything that can be done? Thanks in advance.

The ati drivers are a bit difficult to install under linux /i had ati radeon 9550/. are u installing the latest drivers? check ati site for instructions /if any/ on new drivers for linux

Yes,I tried the latest drivers.I could do without fast 3d graphics ,but I need to change the screen resolution to a higher value than 800x600.

Is there an other way than installing new drivers to do it?

Did you try xorg.config file? (in /etc/X11/ dir)

Yes,here is the relevant section.

# Any number of graphics device sections may be present

Section "Device"
Identifier "VESA Framebuffer"
Driver "vesa"
#VideoRam 4096
# Insert Clocks lines here if appropriate
EndSection



# ************************************************** ********************
# Screen sections
# ************************************************** ********************

# Any number of screen sections may be present. Each describes
# the configuration of a single screen. A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
Identifier "Screen1"
Device "VESA Framebuffer"
Monitor "My Monitor"
DefaultDepth 16
Subsection "Display"
Viewport 0 0
Depth 8
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
Subsection "Display"
Depth 15
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
Subsection "Display"
Depth 16
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
Subsection "Display"
Depth 24
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
Subsection "Display"
Depth 32
Modes "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
EndSection

Is there anything I should do besides that?