Grainy photos and troubles in macro

[Myka]

I have a Canon G7 and I keep getting really grainy photos, and it's not focusing very well in macro. I take 50 billion photos and only a few of them are half decent as most aren't focused. I'm also having troubles getting true colors, especially reds. Reds are coming out too bluish, but when I try to adjust white balance they turn out brown. Bleh. The colors are really bleh compared to real life.

I have been trying all sorts of settings, and change them up all the time, but if you want specifics go ahead and ask because I'm not really sure what other info to provide...I'm not camera savvy at all.

Any help?

Here's some good examples: http://www.canreef.com/vbulletin/sho...&postcount=113