My CSS/XHTML all messed up in Safari Only

Hello....

I am CSS/XHTML newbie and this site is my first attempt at using these
standards.

Although my site looks okay in Firefox and iCab on the Mac (and works
just fine on the PC side too) when it comes to Safari the site is so
totally messed up I wondering if it is even recognizing my style
sheet...my goal was to code to the XHTML-strict specification.

Can someone take a quick look and give me a clue as to what I need to
do to address this issue?  The url is www.crowdigitalmedia.com

Thanks for any and all help.