Hi, I am new to Zen Cart, and have little to no expericence with php.

What I want to do is center the header image (header_bg.jpg), and according to what I read in
Top 10 Questions asked by new Zen Cart™ Users


I should make that change in my stylesheet.css file. But I couldn't find this:
#logoWrapper {
width:760px;
height:110px;
background-image:url(../images/your_header_image.???);
background-repeat:no-repeat;

So I added it at the bottom, which got my image to diplay once
I changed the css file name to match my image file name, only it
is left aligned and I want it to be centered. I tried putting html code
align="center" in there but that didn't work. Any suggestions?

One other question, if my site doesn't fill the width of my screen
can I use an auto width command or 100% for width???

Thanks,
John