Not well with Windows 7, which doesn't much like RAID.
A lot depends on the controllers which will need to provide both RAID for XP and SATA/AHCI for Windows 7.
You can try booting Windows 7 to see if it sees the target HD, then try install.
If this fails, unplug the RAID while taking careful note of its settings, try install of Windows 7 to target HD with nothing else plugged in at all. The SATA controller should be in AHCI mode.