How do I remove twentyten without ruining what I did?

Question

I created a blog with the twenty ten theme. I understand there are issues with upgrading WP with this default theme. It overwrites what you did. Is there a way to fix this with starting over.

How would I change something like this? Ex.

<?php else : ?>
        <div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
            <h2 class="entry-title"><a href="<?php the_permalink(); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', 'twentyten' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></a></h2>

        <div class="entry-meta">
            <?php twentyten_posted_on(); ?>
        </div><!-- .entry-meta -->

Answer 1

Twenty Ten modifications will be overwritten with upgrades so you should be using a Child Theme of Twenty Ten instead of modifying it directly. There really is no way to stop the upgrade/overwrite without renaming the theme and putting it in a different folder with a different name.