Any PHP-Cracks around for little help?

Hey guys, I’m not that pro in coding PHP. It surely seems easy to you but not to me ??

My idea: When having the custom field “member_content” show a little message and the login/register-forms. It almost works but the forms are now shown in all articles because I don’t know how to connect all this PHP-stuff.

Please help!

<?php if(!get_post_meta($post->ID, 'member_content', true) || is_user_logged_in()) {
  					    the_content('<p>Read the rest of this entry ?</p>');
  					} else {
  					    global $more;	// Declare global $more (before the loop).
  					    $more = 0;	// Set (inside the loop) to display content above the more tag.
  					    the_content(""); //pass empty string to avoid showing "more" link
  					    echo '<p>Um den gesamten Artikel lesen zu k&ouml;nnen, musst du eingeloggt sein. The complete article is only available to members. Please log in to read the article in its 	entirely.</p>';
  					}; ?>

  					<?php if(!get_post_meta($post->ID, 'member_content', true) || is_user_logged_in()) { ?>
  						<div id="single-forms">
  						<div class="login-form-single"><form class="clearfix" action="<?php echo wp_login_url(get_permalink()); ?>" method="post">
  							<h3>Zutritt zur mitStil Lounge</h3>
  							<label class="grey" for="log">Benutzername:</label>
  							<input class="field" type="text" name="log" id="log" value="<?php echo wp_specialchars(stripslashes($user_login), 1) ?>" size="23" />
  							<label class="grey" for="pwd">Passwort:</label>
  							<input class="field" type="password" name="pwd" id="pwd" size="23" /><br />
  							<label><input name="rememberme" id="rememberme" type="checkbox" checked="checked" value="forever" /> Passwort Merken</label>
  							<div class="clear"></div>
  							<input type="submit" name="submit" value="Login" class="bt_login" />
  							<input type="hidden" name="redirect_to" value="<?php echo $_SERVER['REQUEST_URI']; ?>"/>
  							<a class="lost-pwd" href="<?php bloginfo('url') ?>/wp-login.php?action=lostpassword">Passwort vergessen?</a>
  						</form></div>
  					<?php } ?>

  					<?php if(!get_post_meta($post->ID, 'member_content', true) ||get_option('users_can_register')) : ?>
  									<!-- Register Form -->
  									<div class="register-form-single">
  									<form name="registerform" id="registerform" action="<?php echo site_url('wp-login.php?action=register', 'login_post') ?>" method="post">
  										<h3>Registrier&apos; dich jetzt!</h3>
  										<label class="grey" for="user_login"><?php _e('Username') ?></label>
  										<input class="field" type="text" name="user_login" id="user_login" class="input" value="<?php echo attribute_escape(stripslashes($user_login)); ?>" size="20" tabindex="10" />
  										<label class="grey" for="user_email"><?php _e('E-mail') ?></label>
  										<input class="field" type="text" name="user_email" id="user_email" class="input" value="<?php echo attribute_escape(stripslashes($user_email)); ?>" size="25" tabindex="20" />
  										<?php do_action('register_form'); ?>
  										<label id="reg_passmail"><?php _e('A password will be e-mailed to you.') ?></label>
  										<input type="submit" name="wp-submit" id="wp-submit" value="<?php _e('Register'); ?>" class="bt_register" />
  									</form></div></div><br class="clear" />
  								<?php else : ?>
  									<h1>Registration is closed</h1>
  									<p>Sorry, you are not allowed to register by yourself on this site!</p>
  									<p>You must either be invited by one of our team member or request an invitation by email at <b>info {at} yoursite {dot} com</b>.</p>

  									<!-- Admin, delete text below later when you are done with configuring this panel -->
  									<p style="border-top:1px solid #333;border-bottom:1px solid #333;padding:10px 0;margin-top:10px;color:white"><em>Note: If you are the admin and want to display the register form here, log in to your dashboard, and go to <b>Settings</b> > <b>General</b> and click "Anyone can register".</em></p></div><br class="clear" />

  								<?php endif ?>