How to backup a New install to a USB stick

[Microspeed]

I just did a new install on one of my T43. I would like to clone it to a USB stick. Anyone with experience with this? The idea is to make it easy to reload the OS.

Thanks

[mikeh420]

both WinXP and Win7 backups can created on a USB stick

[Microspeed]

I guess I should have been clearer in my title. I do not want to Back-up; I want to clone the drive . This way I could use the USB to transfer the clean install. Again, has anyone ever done this?

Thanks

[Tasurinchi]

I never tried that as my hard drives are of much much bigger size than my pendrives. I've cloned drives using Acronis True Image, I don't know if it supports pendrives, you may look for more information here or here.