I went to Barnes and Noble and skimmed through Digital Photography Simplified. Alas I'm beginning to understand the idea behind aperture, shutter speed, composition and other important factors in creating awesome pictures.
What I learned
Now for the aperture (aka f/stop and found under the av setting) its measured in fractions but on the camera you will only see the number looking like f/3 until f/8 (approx). Now what does that mean? Looks confusing but what it is, is the size of the hole that allows light into the camera. So f/3 is 1/3 size and is a lot larger than 1/8. Basically a smaller f/stop means a larger size (just the way fractions work). Now for the use of it - here comes the fun part - shallow depth of field where the focus is on one part of the picture and the rest is blurred out can be achieved by setting a small f/stop like f/3. And for a large depth of field a larger number should be used like f/4 and the whole picture will come out clear like when shooting landscape.
The rule of 3rds and composition where other chapters in the book that proved very useful.
Here the pictures. They were taken on RAW mode (told you that G10 was a good camera :) and so I did basic editing in photoshop RAW sliders and then one or two edited a bit more in photoshop.