How to install Fedora on this laptop without DVD drive

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http://forums.fedoraforum.org – Dear Friends, I have this 6 yrs+ old Toshiba laptop, which was working fine until a few days ago when its DVD writer died suddenly. I want to install the latest Fedora 18 LXDE 32+ bit on it (I have downloaded the iso already) as I did install and run the Fedora 17 LXDE 32+ bit without much problems using a CD then. But since the DVD writer/drive has died I have to use the USB stick/pen drive method to install Fedora 18 LXDE version, but I just found out that this laptop does not support booting off a USB stick/pen drive in the BIOS section. What do I do now? I do not have an external DVD writ (HowTos)