After some nice panicking, I finally found this great guide. Worked on first attempt. Was trying to install XP on a friend's Toshiba a200 using just Intel Matrix Storage Manager-18.104.22.1687 inserted through nlite. Got the HD recognized for the installation, but would give me a BSOD when booting. I followed the guide inserting your modded RST (item e) and your INF package (intel chipset device software) in a XP SP3 disk. Flawless. All set now. Thank you very much, Fernando. Awesome work.