So that's your shot?
The camera seems alright. Adjustable ISO? The one bad thing is the RGB color, and no Raw formatting, but Jpeg works just fine if you don't have any software to adjust basic settings.
You need to get one that can be adjusted manually, on everything. I know they are out there... just haven't looked into them, though I do need a P&S to keep in my pocket, lugging gear gets old.
On to the sunset settings. You want a small f/stop ie f/11 - f/22. Might need to bump your ISO sensitivity depending on your shutter speed. Having an f/ stop that is too big can cause flare, sun spots, and a poor shot. Getting a small aperture can be difficult depending on your other settings, so you want to use aperture priority. General rule is hand held anything shorter than 1/30 of a second. You can get it slower, though camera shake is the number one reason a shot is missed.
I would shoot that one ISO 400 f/16 and shutter accordingly. The f/stop is the important thing. You don't want it wide open ie at f/2.8, but you don't want it so small ie f/22 that you miss out on the clarity you get from the right f/ stop...
Understanding Exposure is a great book to have around. I have been shooting since high school on an off, but still keep this basic book lying around for reference. Here's a link Understanding Exposure by Bryan Peterson
ETA: If my mumbo-jumbo camera talk confused you, they offer classes if you're seriously interested at local community colleges... or you can start reading books. I gain more from books than I do from class, in class I'm usually helping the teacher teach other students.
ETA2: Dpreview is a decent sight, though a lot of people talking... photo.net seems to be a little more moderated and they make sure there isn't any false information given.