I was looking to dual boot my new Acer Extensa 5630z notebook as it came with Vista Home Premium and I wanted XP as an option also. XP would not load without an updated SATA driver for the Intel chipset. Acer has version 8.2.0.1001 available for download.
When I tried DP_MassStorage_wnt5_x86-32_805.7z it didn't help. After poking around I came up with DP_MassStorage_wnt5_x86-32_811D.7z and it worked great.