HELP PLEASE - cant get Ubuntu on my computer!

Hello everyone,

So about a year back I had ubuntu and xp running as a dual boot on my Asus eeepc 1000hd. I had nothing but problems, so I deleted ubuntu. But I cant remember how I got ubuntu on here in the first place.

I dont have a optical drive, or a floppy drive, and Ive tried every method with a usb flashdrive but I cannot get ubuntu to work, I cant even get my computer to boot from the usb.

When I installed ubuntu last year I didnt have a usb flashdrive and I got it on here, but I cant find any resources on how to do that again.

How do I install ubuntu on my eee pc 1000hd without a cd drive, floppy drive, or usb?

I appreciate your help in advance, and I look forward to being done with any microsoft software.....and being free from it for the rest of my life.