Awesome theme help

Hi!
I have a question about my theme that I was wondering if anyone would know how to help me with. I am trying to change the logo size for my blog : russemuse.com using the theme Awesome. When I used firebug in firefox to locate the area where I could change it, it found this:
.sitetitle {
max-height: 100px;
max-width: 300px;
}

I adjusted this to:
.sitetitle {
max-height: 230px;
max-width: 300px;
}

in the Appearance – editor – Stylesheet (style.css) but it did not work.
Where should I adjust this so that I can increase the size of my logo?
Right now, I ended up just making the logo part of the header banner but I would rather be able to upload the logo to the logo section and adjust the size.

Thank you!

The blog I need help with is russemuse.com.