Satellite A300D-15B PSAKCE - Cannot install the Win XP 64bit sound driver

Question

Hello all,
This is my first post here after lurking for the last week or two, My hope is that somewhere here there is help and hence hope!
I have a wonderful Toshiba A300D-15B PSAKCE with 4GB/O RAM, however I am suffering from some problems that the holy SEARCH function cannot solve. I use this laptop as a development box for uni/work alas...
After an absolute nightmare with Vista32 and Vista64 I decided to go back to windows XP32, however this wont install, keeps claiming a CRC file failure after (and yes this is with the SATA in IDE mode and with an XPSP2 disk)
I decided that I really DONT want to goback to Vista, so installed Windows XP64. Now the initial Instal goes very easy, I have the basic setup, the chipset, graphics, network, processor, usb, pretty much the basic... except... and this is where I have lost most of my hair.... SOUND!
Firstly attempting to install the sound driver results in Failure, claiming the mmdriver.inf cannot be found or corrupt, obviously I checked, and yes there it is, for the sake of it downloaded the MMDRIVER.INF and placed it system32, and still the install fails.
I have also tried a "Manual Install", from the .inf files... this includes the XP32/64 drivers and the Vista 32/64 bit drivers, still the same
problem, driver continues to fail install. I am becoming increasingly bald. Outstanding Drivers that WONT install
*-Audio Device on High Defninition Audio Bus*
*-Mass Storage Controller*
*-Modem Device on High Defninition Audio Bus*
*-USB Device*
If the following is any help, (Sandra 2008)
*-Disk Controller*
(AMD(ATI) SB700 SATA Controller [IDE Mode])
*-Disk Controller*
(Toshiba SB700 IDE)
*-Audio Device*
(Toshiba IXP High Definition Audio Controller)
*-Audio Codec*
(Conexant Systems 5051h)
*-Audio Device*
(AMD (ATI) RV635 Audio device [Radeon HD 3600 Series]
Now, as I write this I have heard rumor that the A305D uses the same
audio/graphics drivers.... well.... off to try something I guess...
if there is any help or ideas I would appreciate it.

Answer 1

Thanks Jaba
Initially I attempted to locate the MS patches you mentioned, KB835221 and KB888111 respectively, alas there were none available that I could find for XP64, also at the time of tapping this message theres no XPSP3 for XP64 bit either.
Lucky for me I logged into my MSDN account and downloaded XP+XPSP3 tore the house up looking for a CDR... anyway long story short.... solved all the problems with the required updates of SP3, I now have my Toshiba A300D-15B all singing 'n dancing laptop setup completely with XP32.
Had to take a hit on the RAM though, gonnna have to go on with only 3.2GB instead of 4GB,
arguably when one counts the memory foot-print that vista ultimate 64 had used I am probalby still on a winner here in memory avaiable terms LOL!
thanks again! much help!