Booting Vista from a memory Stick

Gday all

I hear of this happening all the time so i thought i'd give it a try and put Vista onto a memory stick (the memory stick is a Sandisk U3 Titanium 4GB) and see if i could boot it on the laptop, The laptop is a Toshiba Tecra M10 with a Intel Core 2 Duo T9600

After pressing f2 to get to the bios settings i chose to boot the vista ISO of the memory stick

Once i chose it, it did not want to boot Confused i tryed again but with no avail.. So i went to my main machine and chose to boot vista of the memory stick and no hassels.. The laptop Runs XP naturally..

Still confused as to why it boots on the tower instead of the laptop so i thought i would ask the pro's.. Help please

Cheers all

Just had a thought,

Should i try to boot it from a DVD-RW on the laptop or try something different?

you cannot simply copy and paste the vista iso to memory stick and boot from it.

You have to make a installation media, Try this link

How to Make/Create a Bootable USB Flash Disk Windows Vista Installer - UnlockForUs