You want to do amateur or power-level computing? Then there is no other choice than Windows! Period.
As a Windows user you don't have to spend tons of a money for a Mac PC (sorry Mac guys but Mac is nothing else than an expensive PC now) and you don't have to waste time on forums to learn how install stuff.
All that Linux/Mac can offer you can get on Windows and get is better.
I spent many years working with Linux but it was always only my second choice.
Sorry Linux friends, but I said it.
Just download the archive and unpack it (you may need WinRar for this). You will find three folders numbered 1,2,3. The numbers correspond with the steps you have to perform (see below).
Enter folder 1.
Run "Microsoft UAA Bus driver for High Definition Audio\ASetup.exe"
Run "Microsoft UAA Bus driver for High Definition Audio\us\Install.bat"
This will restart your Windows without any questions. So, be prepared (save your work).
Enter folder 2.
If Windows ask for drivers go directly to step 3. If not, run this file:
Run "Restart UAA using DevCon\Restart_UAA.bat"
Enter folder 3.
When Windows ask for drivers for your Conexant audio chip, point it to the "High Definition Audio Device\XP32\" folder.
That's all. If Windows recognizes the driver it will let you know. The SmartAudio utility is FULLY functional also!! The audio chipset will be listed as Connexant Pebble High Definition SmartAudio. Enjoy and don't forget to leave feedback!
Don't forget to send a "Fuck You" letter to Toshiba for its great nonexistent customer support and for locking its laptops on Windows 7 64 bits (poor Linux bastards, I pity you also :) ).
If the process is not successful please leave a message. You may need to change a line in the above script. I will provide guidance.
I will try to upload a newer driver soon and to create a software tool that will automate the process for you and to make the driver compatible with ALL possible laptops (not only Toshiba) that have a Conexant audio chip.