The Dink Network

You want to make the sprite fill up the entire screen? You do realize that you'll have to stretch the sprite along the x axis by over 100% right? You'll end up with a sprite that looks very strechted out. I'd definitely recommend going with a different sprite in that case.

And if you do want to resize a title screen sprite I recommend doing that in a program like gimp or photoshop, that will give you a much better result. As far as I know Dink can't resize a sprite specifically over one axis.