Create windows xp image file

If you mean a Disk imaging software to copy a whole partition and not a graphics file image, then Google search using the following term....

disk imaging software

I use R-Drive myself and it has saved me hours over the years!

You can use norton ghost or ashampo burning rom

You could use software such as Nero to do this. There are also free programs out there, such as the one below. You are looking to create an ISO image from files.

Two ways-
1- hit your PrintScreen key to capture whatever pic is on your monitor screen, then Paste it into your Win XP Paint file and Save it.
2- Right-click on whatever pic is on your screen, then Save it to Paint the same way.
Or have i misunderstood your question?