Problem with sidebar in css. (WordPress Theme)

Here is my site: http://nickhiebert.com/

Now the problem is on each page in the navigation pages (logo-website name), About, Contact and Resume all display the sidebar. But the problem is nothing is aligning properly.

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Here is my style.css file:

/* SIDEBAR */

#sidebar {
margin-right: 312px;
padding-bottom: 100px;
color: #231f20;
padding-left: 50px;
margin-top: 10px;
position: relative;

}

#sidebar h3 {
color: #bab8b8;
font-size: 18px;
margin-right: 312px;
padding-right: 20px;
padding-left: 41px;
position:relative;
}

#searchform {
margin-right: 630px;
padding-left: 45px;
position: relative;
}

/*
#sidebar links_with_style {
margin-right: 312px;
}

#sidebar wp_list_categories {
margin-right: 300px;
margin-top: 600px;
}
*/
#sidebar a {
color: #231f20;
line-height: 1.5em;
position: relative;
}

#sidebar a:hover {
color: #bab8b8;
}

/* END SIDEBAR */

/* BODY */

html {
background: url(http://website.com/wp-content/themes/portfolio/images/background.png) scroll;
}

body {
text-align: left;
font-size: 100%;
font-family: Geneva, Arial, Helvetica, sans-serif;
color: #999999;
background: url(http://website.com/wp-content/themes/portfolio/images/mainBG.png) repeat-y;
margin-right: 128.2px;
margin-left: 137.2px;
margin-bottom: -18px;
background-position:center;
}

body h1 a{
float: left;
padding-left: 60px;
padding-top: 9px;
width: 260px;
}

body h2 a {
color:#000000;
}

a {
text-decoration: none;
}

a:hover {
text-decoration: none;
}

p {
color: #333333;
line-height: 20px;
margin-right: -20px;
}

h1 {
float: left;
margin-top: 0;
border: none;
width: 260px;
margin-left: -3;
}

img {
border-style: none;
margin-left: -45px;
float: left;
margin-top: -9px;
}

h2 {
font-size: 25px;
margin-right: 45px;
overflow: hidden;
}

#container {
width: 973px;
margin: auto;
text-align: left;
}

/* END BODY */

/* HEADER */
/*———————————————————————

#header h1 a{
float: left;
margin-right: 312px;
width: 260px;
}

/* END HEADER */

/* NAVIGATION */

#nav {
background: url(http://website.com/wp-content/themes/portfolio/images/nav_bg.png) repeat-x;
overflow: hidden;
height: 93px;
margin-right: 13px;
margin-left: -70px;
padding: 0 0 0 31px;
}

#nav li {
float: right;
line-height: 93px;
padding-left: 5px;
padding-right: 85px;
width: 110px;
}

#nav li a {
padding: 0 1em;
color: #565354;
text-transform: uppercase;
font-size: 17.3px;
font-weight: bold;
line-height: 20px;
font-family: Arial, Helvetica, sans-serif;
list-style-type: none;
}

#nav li a.first {
padding-left: 0;
}

ul, li {
list-style-type: none;
}

/* END NAVIGATION */

/* MAIN CONTENT*/

#content {
margin-left: 380px;
margin-right: 150.2px;

}

#content .date {
padding-left: 200px;
color: #000000;
}

#content .post-comments a {
color: #999999;
}

comment form .p {
margin-right: -50px;
}

/* END MAIN CONTENT*/

/* FOOTER*/

#credits {
background: url(http://website.com/wp-content/themes/portfolio/images/footer_bg.png) repeat-x bottom;
margin-top: -300px;
margin-bottom: 40px;
padding-top: 15px;
margin-right: 14px;
margin-left: 14px;
padding-bottom: 20px;
}

#credits .alignleft {
margin-left: 175px;
margin-bottom: 10px;
margin-top: 10px;
padding-top: 10px;
padding-bottom: 16px;
color: #231F20;
}

#credits .alignright {
color: #231F20;
}
#credits a, alignleft, alignright {
padding-bottom: 20px;
}

/* END FOOTER*/

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If anyone has any solutions to my problem please post code that would work with the issue.

Thanks.