How do you expand the entire form width?  It is currently centered on my contact page, but it is too narrow and there's too much space on each side.

I tried updating:

.cform {
    margin:10px auto 0 auto;
    width: 410px;

…… to 510px and 610px, but this did nothing.  I'm a total newb to CSS. 

Thanks!

I'm using WAMP server.. and running this on my laptop at work, so it's only accessible by other intranet users. 

You need to modify these lines in the stylesheet:

.cform textarea,
.cform input {
width:275px;
}
.cform select {
width:275px; /* attempt to have equal length */
padding:2px 0;

I'm not a css genius either…you just gotta poke around to find it. But now you know just use the 'find' feature in your browser to drop down to that section in the stylesheet.