Wow...where to start?
It's really pretty simple, and I've got to get to work, but I'll start.
ISO...generally, the lower the number, the finer your pictures will come out. In the old days, they called it grain, now they call it noise. Either way, once you get up around 400 or higher, your pix... especially if you make them large, will seem grainy, and somewhat out of focus.
The snow here makes it look grainy too, but you get the idea.
Now, sometimes you must raise the iso, because the lower the iso, the "slower" you must shoot. In other words, the film speed...iso...is directly related to the shutter speed. Play with it. In the same lighting, choose an iso of 100. Observe what shutter speed you will be shooting at. Then, raise the iso to 400, and notice you can shoot much faster.
Typically, indoors, or on cloudy days, you must raise your iso...if you shoot too slow, you will get blur from not holding the camera steady enough.
Nice camera you got there...the zoom they included is a slow lens...the aperture is 3.5 I believe. That forces you to shoot a little slower (shutter speed) on low light instances.
For now, that'll give you something to play with...I'll be back later. We can move forward unless someone else hooks you up.
edit...check out post 207
How does your garden grow?
Depth of field...how much is in focus, and how much isn't....notice the flower is crisp, but the background is blurred. Sometimes this is desireable, sometimes not.
A large lens opening...2.8,3.5,4, etc. will give you less depth of field. More blur in the background.
A small lens opening, will make everything clear.