Id use a minimum of an 800ISO and, try setting the white balance to incandesent. Since it is a digital thoug try a shot and, see how it comes out. If it isnt what you like try another setting. Also shoot in Apature priority.
I dono why you'd give that advice Jove, but I don't agree with it...
Besides...shooting in a higher ISO just adds noise to a pic which should be using a tripod...and shooting in aperture priority doesn't change anything unless you choose an aperture.
I would listen to switch. He's got the right idea.