Giving credit to the wrong person, and I'll as you the same question, have you found a way to get the top buttons working.
I apologize Resolver1, Thank you for this solution.
It was the perfect fix!
The only thing I've found to fix the "other" entries for the was using Driver Magician to export the devices from Vista, and then import them back into XP pro. Unfortunatly, while this solution removed the yellow "other" entries from the Device Manager, and put the correct Direct Application Launch Buttons entries in the system section, this still did not add any functionality to the buttons themselves. In Vista these buttons control the Windows Media Center which I do not have installed in XP. In Vista, pressing these buttons starts ehmsas.exe, ehshell.exe, and ehtray, all parts of Media Center. Reading the Vista "driver" file (2 registry files and a cmd script) it looks like these buttons should run Media Player when Media Center is absent. (I think I need to do more research about Media Player command line switches to get this to work.)
I completed my full reinstall of XP pro to test all the drivers and everthing seems to be working accept the media buttons and the Digital Mic (next to the camera.)
I first I downloaded the following divers to my USB drive and installed them in this order. Here is the method I suggest:
01 .NET Framework
http://msdn2.microsoft.com/en-us/netframework/aa731542.aspx
(because XP pro sp 2 doesn't have this and some drivers require it.) Save file into a directory on your USB stick named "
01 dot Net Framework"
02 AMD Turion
http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_871_14098,00.html
http://www.amd.com/us-en/assets/content_type/utilities/setup.zip extract zip file and save contents into a directory on your zip drive named "
02 AMD Turion"
AMD Turion™ 64 X2 Dual-Core Mobile Technology Driver Version 1.3.2.0053 for Windows XP and Windows Server 2003 (x86 and x64) - Allows the system to automatically adjust the CPU speed, voltage and power combination to match the instantaneous user performance need. This package is a user friendly localized software installation of the driver designed for end-users. This driver supports AMD Turion™ 64 X2 Mobile Technology on Windows XP SP2 and Windows Server 2003 SP2 x86 and x64 Editions.
03 ATI SMBus
http://ftp.us.dell.com/chipset/R134875.EXE save file on your USB stick in a directory named "
03 ATI SMBus"
04 AMD Dual-Core Optimizer
http://www.amd.com/us-en/assets/content_type/utilities/Setup.exe
Save file into a directory on your USB stick called "
04 AMD Dual-Core Optimizer"
AMD Dual-Core Optimizer - The AMD Dual-Core Optimizer can help improve some PC gaming video performance by compensating for those applications that bypass the Windows API for timing by directly using the RDTSC (Read Time Stamp Counter) instruction. Applications that rely on RDTSC do not benefit from the logic in the operating system to properly account for the affect of power management mechanisms on the rate at which a processor core's Time Stamp Counter (TSC) is incremented. The AMD Dual-Core Optimizer helps to correct the resulting video performance effects or other incorrect timing effects that these applications may experience on dual-core processor systems, by periodically adjusting the core time-stamp-counters, so that they are synchronized.
05 VIDEO
Radeon Omega Driver 4.8.442
http://www.ngohq.com/home.php?page=Files&go=cat&dwn_cat_id=14
(Thanks Resolver1 !) Download ati_omega_xp2k_48442.exe and save it onto your usb stick in a directory called "
05 VIDEO"
06 NETWORK
ftp://210.51.181.211/cn/nic/rtlsetup-pcie(664).zip Unzip and save the directory onto you USB stick as "
06 NETWORK".
07 SOUNDCARD
http://support.gateway.com/support/drivers/getFile.asp?id=21374&dscr=SigmaTel Audio DriverVersion: 5.10.5185.0
ftp://ftp.gateway.com/pub/hardware_support/drivers/win_xp/sound/integrated/D00758-001-001.exe Run the file then copy C:\cabs\D00758-001-001\ onto the UDB stick and rename it "
07 SOUNDCARD"
08 buttons(hotstart)vista
ftp://ftp.gateway.com/pub/hardware_support/drivers/win_vista/misc/A20381-001-001.exe Run the file then copy C:\cabs\A20381-001-001\ onto the UDB stick and rename it "
08 buttons"
(This is an incomplete fix for the media buttons.)
09 TOUCHPAD
http://drivers.synaptics.com/Synaptics_Driver_v10_1_8_XP32.exe Download and save the file into your USB stick in a directory named "
09 TOUCHPAD"
10 CARDREADER
ftp://ftp.gateway.com/pub/hardware_support/drivers/win_xp/portable/mx3000/D00620-001-001.exe Run the file then copy C:\cabs\D00620-001-001\ onto the UDB stick and rename it "
10 CARDREADER"
11 WEBCAM
ftp://ftp.gateway.com/pub/hardware_support/drivers/win_vista/webcam/D20189-001-002.exe Run the file then copy C:\cabs\D20189-001-002.exe\ onto the UDB stick and rename it "
11 WEBCAM"
12 MODEM
ftp://ftp.gateway.com/pub/hardware_support/drivers/win_xp/portable/mx3000/D00670-001-001.exe Run the file then copy C:\cabs\D00670-001-001.exe\ onto the UDB stick and rename it "
12 MODEM"
I then installed XP pro with sp2 slipstreamed onto my Gateway t1620.
I installed each of the divers in the order I listed above.
Most of the Gateway cab directories have setup.exe files. Here are a list of the executables in each directory:
01 run dotnetfx.exe
02 run setup.exe
03 run R134875.EXE
04 run Setup.exe
05 run ati_omega_xp2k_48442.exe
06 run setup.exe
07 run setup.exe
08 run Hotstart.cmd
09 run Synaptics_Driver_v10_1_8_XP32.exe
10 run setup.exe
11 run setup.exe
12 run setup.exe
I then connected the Gateway t1620 to an ethernet cord to my LAN and ran Windows Update in custom mode so that I could select all of the hardware driver updates that it found. Windows Update has all of the WiFi drivers. I ran Windows Update repeatedly until it didn't find any more drivers or other updates. I was able to then install my digital voice recorder software without any device driver problems.
After that I installed the free version of AVG anti-virus and antispyware to satisfy the Windows Security Center.
I hope this all helps and makes some sense. This process produced good results for me.
The XP system runs a lot better than the Vista system! I saved the whole new instalation to another image using Clonezilla, and remounted Vista to checkup on how the digital microphone is hooked up. (I noticed that originally the camera software had not worked in Vista.) The t1620 with Vista installed is so slow and cluncky compaired to the t1620 with XP installed!
I will continue to work on getting the built-in digital microphone working and to get the media buttons to connect to something, but outside of that I now have a more functional operating system with XP than with Vista.
Thanks everyone for all of your research!