Custom WP template HTML/CSS??

Hello, I am a web designer/developer, i am redesigning a site for a client using WP platform, and adding my own custom template making the home page in the dashboard use my custom template in the templates drop menu, my current issue is i have uploaded WP in a folder called wp and created a folder in the wp-content/themes folder and uploaded all the basic template files in this folder, inside this folder i am adding my own php files called home.php, about-us.php, concat-us.php, etc with code <? Template Name: my chosen name ?>, and added my own css file, but the home page can not locate the css page, and other images/js folders etc so i am wondering if the issue is with WP or address or location of the files, so can anyone figure the cause of the problem, and how to fix it, and let me know asap, thanks.

current site: http://www.beigi.ca/wp/