Dawna - Sorry I forgot to mention that I use the viewfinder almost exclusively to shoot except when I am on a power cord and shooting product shots in a studio, or perhaps studio portrait shots, etc.
Dawna - Thanks for the comments - congrats on the E20! Great camera and great tool for getting what you want to capture onto the screen or print paper! Best way I have found on sunsets is to determine what effect you want i.e. if dark, moody and saturated with deep color is what you are after, simply (1) put the camera on auto-expose, (2) put the round-outlined "spot-metering" area in the viewfinder on one of the brighter areas of the shot (but usually not the sun itself), and (3) press the shutter-release button down ONLY half-way, then (4) compose the picture (while still holding the button partially down - to "lock in" the exposure) and then take the shot by pushing the button all the way down. A few shots and you should get the hang of it! Another thing - I don't think you can take a good sunset picture (or almost any other kind of shot) relying on the view-screen. I would recommend using the camera just like a 35mm SLR and select where you want the exposure to be measured in the scene, compose, let the camera auto-focus by itself, and take the shot. Simply - forget about the pop-out view-screen as all it does for me is waste battery life. Good Luck!
Lovely sunset captured on your E10. I am just learning my way around my E20, so would love to know what settings you used, and if you made any changes in photoshop (I have been experimenting with sunsets for a short while and am not getting it right yet).