Hi Dennis,
thanks, works great for me (with build 7100 of course).
Just in case anyone else is encountering the problems I had:
When using the current BIOS (v. 2001) for the Asus Eee Pc 901 Go, you must enable the network boot option in the BIOS in order to be able to boot from USB sticks. Don't ask me why.
Also, be sure to chose the USB stick as first "Hard Drive" boot device, which is in an extra menu directly below the normal boot menu.
Regards,
paeppi
PS: Win 7 actually runs faster than XP. Only the disk space needed is ~ 3 GB higher, which might disturb owners of small SSD disks.