Very neat IR shot,
escimo. Those are the types of shots I'd want to get with an IR filter. If you raise the ISO will more color enter into the picture?
Welcome,
Nervous Venus! I'm not sure what the controls of the Canon are, but you probably have scene modes, full auto, full manual, manual aperture, and manual shutter at the very least. Very few people use full manual, and even then it's generally only in special scenarios.
The way that I learned was by reading over the manual (and reviewing sections often - I carry it around with me) and then by experimentation. I started out using the camera in scene selection modes and made note of what those presets were. The white balance, the ISO setting, the sharpness, gradation, contrast, saturation, etc. I'd also make note of what the camera was setting the shutter speeds and aperture values to be in various environments. That's how you begin to get a feel for for each setting should be and when it's appropriate.
Following that, I began to read up on various things. There are a few websites that have picture examples of the same image, taken at different settings so that you can see the effect. There are also some sites that let you emulate what various settings would be. For example, try this and play around:
http://dryreading.com/camera/index.html
Many of us here would be happy to explain any of the terminology or basic techniques to you. If you have any questions, feel free to ask. Otherwise, the best way to learn your camera is to use it. Many of your first shots might not come out very well (if at all), but keep shooting! The nice thing about digital cameras is that you don't need to buy new rolls of film and you can see the results right away, so feel free to shoot thousands of pictures.
Lastly, don't get frustrated. I saved the first shots I took with my first DSLR, and it's laughable how poorly they came out. Blurred, underexposed or overexposed pictures seemed to be the norm. I thought I was hot stuff at the time, of course, and kept shooting. There's still a lot of room for improvement, but looking back, I came a long way. I'd say that within one month of moderately heavy usage I was able to take decent pictures. The rest is learned from taking your camera to unique places and using it under various conditions. I'm looking forward to seeing shots from you in the near future.