I suggest using Firebug
to inspect the areas that you want to adjust, and testing different margin or padding for those areas.
For me to provide support on layout, I need a URL of the site that needs changing. I'm not a designer, and the suggestion above is the method I use, so it will save you time if you just follow those steps.
Support doesn't technically cover layout changes anyway, but if you need help figuring something out, please remember to post a URL any time you start a thread; I can't use firebug to inspect a screenshot, and there's no way I could possibly remember the CSS for even one release, let alone all of them.