The previous answer pretty much covers everything, but i'd like to add that you shouldn't be afraid of under exposing. Take advantage of the fact that it's digital, play with the exposure compensation, and tone it down. It'll probably look good even if the pictures are darker than the camera's meter wants. Make sure to check though.
Also remember that fixing an under exposed shot will cause grain, which sucks, but fixing a blurry picture is not possible, so it's probably better to err n the under exposed side. There is software which does an OK job of removing noise (i think it's called noise ninja).
Also try to borrow a prime lens (which usually have much larger apertures) or an image stabilising lens or camera body from somebody else, unless your friend has these.
Lastly, practice taking stable shots (breathe in calmly, not do deeply, start exhaling, stop, take the picture by firmly and slowly squeezing, not pushing the shutter release, and only continue breathing when you hear the shutter go up. This has to be a smooth sequence, not a step by step thing, or your body starts shaking a bit). It's possible to take 1/15 second exposures and even longer if you get good at this.
Cheers,