|Buy or borrow a usb cd drive and use it. It would be much easier.|
Otherwise you'd need some bootable media such as a barts PE usb. It has a way to install xp from files. Files could be based on any network accessible point.
Othewise you have to fool with pxe or better still gpxe and boot to some PE and then access files via http, ftp, tftp, iscsi or any other supported media.
I support the 'Everybody Draw Mohammed Day'. A religion doesn't deny my freedom.