

This is the site I am building : http://www.teckelsanimalsanctuaries.com/
Obviously next to no content at the moment as I want to get the styling right before I add the rest of it.
First problem:
I have cheated with the logo simply uploading our logo and renaming it to replace the cms default logo - however I'm stuck now I want to have a centered banner with the site name and our slogan running pretty much across the whole of the header - can someone direct me to which style sheet I need to change to do that? (I'm using the left simple +1 column template) and then where in that stylesheet do I make the changes specifically to center the banner. I thought I had it figured out and tried changing the logo we have up but it wants to stay left - adding the instruction float center doesn't do anything; adding float right made it dissapear completely.

Second problem:
I really do not like the yellowy mustard colour of the highlight in the menu column I want it to be the same light blue as our banner (well actually I may not like that when I see it but knowing where I change that colour value will make it a heck of a lot easier for me to play around until I find a colour I like) - I have changed loads of colours in both the main style sheet and then trying to change values in the navigation simple verticle sheet but that changes nothing - and could even be entirely the wrong stylesheet to edit anyway

Many thanks.