layman

Hi, I'm using Vista Home and with the kind help of WinSetupfromUSB 0.2.3 I'm now trying to create a bootable USB to give new life to my Asus EEE pc (Windows XP). I got to the point when the program asks me to boot from USB two times, I did restart, XP setup boots from my USB (SanDisk 4GB, NTFS, NTLDR), but then I got the screen 'Cannot install \WINDOWS'. Can anyone help me on this? I'd be appreciate it since I started this 3 days ago, not with WinSetup but with other programmes (Bart, PEbuilder, USBprep8, USBmultiboot, bootsect..... cheers layman