footer.php

Dear WordPress Team Technical Support:
I am currently use Twenty Eleven 1.3 by the WordPress team for my Website.

Being very new to WordPress, I would appreciate if you can assist me on the following:

Changing the Footer to make my Website more personalize to the Company Content I work with

How do I change the Footer (footer.php using Editor in the Dashboard)
“Proudly powered by WordPress” to
“Copyright 2012 @ ABC123 Ltd” in the footer.php file?

Also how do I have overcome the situation whenever I click my mouse over the “Proudly powered by WordPress” it brings always bring me to the http://ww.wp.xz.cn/ website? .. in my case it should be http://www.ABC123.com

I am referring to how the following codes can be changed?
~~~~~~~~
” title=”<?php esc_attr_e( ‘Semantic Personal Publishing Platform’, ‘twentyeleven’ ); ?>” rel=”generator”><?php printf( __( ‘Proudly powered by %s’, ‘twentyeleven’ ), ‘WordPress’ ); ?>
~~~~~~~~~

[mod: please mark any posted code – the above code is already corrupted; see forum guidelines for posting code]

Thank you for assisting!
CXM