UNetbootin - Homepage and Downloads
If that doesn't support 10.04 for some reason-
Put Ubuntu on Flash Drive using Windows | USB Pen Drive Linux
Why not install latest version anyways
guys , dont try this method
1. it only puts cd iso (image) file in usb.
2. Dont saves any settings.
3. This is only make another linux live cd(usb) if u dont have any cd carry case then only try this.
and now going 2 try as gauravs90 suggested
Tutorial is done... you can see it here...
*www.thinkdigit.com/forum/tutorials/158997-installing-ubuntu-usb-flash-drive-not-live.html
successfully installed ubuntu 10.10 in 16gb pendrive.
With very safe Methods
1. Removed sata connection from hdd
2. Inserted dvd in trai
3.inserted usb drive
4. Selected full drive install
i dont wanted to messup my MBR as i did last month and lost all my data in hdd(long sad story)
but guys it takes about1:30 to 2 hrs to install in usb drive