Trouble Centering Footer

http://www.itworksllc.net

i’ve got to be missing something. i’ve played around with the footer.php file and AM able to get my footer to center if i erase the whole PHP and use my own code. problem is, the site doesn’t look right when i start fiddling.

FOOTER.PHP

<div class="content-btm"></div>
			<!-- // content -->

		</div>
		<!-- // sub-header -->

		<!-- footer -->
		<div class="footer">			

			<div class="copy">
				<p><?php echo stripslashes(get_option('qd_footer_copyright')); ?></p>
			</div>
			<div class="right w200">
			<?php if (get_option('qd_footer_iftweet') == "true") : ?>
				<a class="twitter" href="http://twitter.com/<?php echo stripslashes(get_option('qd_footer_twitter')); ?>">Follow us on Twitter</a>
				<?php endif; ?>
			</div>

		</div>
		<!-- // footer -->

	</div>
	<!-- // wrapper -->

</div>
<!-- // container -->
<?php echo stripslashes(get_option('qd_ga_code')); ?>
<?php wp_footer(); ?>
</body>
</html>

STYLESHEET.CSS

/*	-------------------------------------------------------------
	FOOTER
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -	*/

.footer {
	position: relative;
	width: 97%;
	margin:0 auto;
	padding:10px 0 0 0; }

.footer .copy {
	float:center;
	width: 49%;
	line-height: 43px;
	text-align: center; }

.footer p {
	color:#787878;
	text align:center;
	padding:0;
	margin:0;
	line-height: 43px;
	font-size:11px;}

/*	-------------------------------------------------------------
	CLOSING STYLES FOR SCREEN / PROJECTION
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -	*/

}