I was able to track down the drivers necessary for these two controllers, but I figured I'd provide an update for anyone else who may run into these problems in the future.
The Mass Storage Controller was the smart media card reader & required a TI driver.
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The SM Bus controller was found in the chipset drivers. I obtained this through
Link
The particular file that solved my problem was 8-5_xp32-64_sb_63033.exe.
Thanks again.