Improved error handling for shopplugin. This is just some customizations of the errors.php file. Replace the errors.php file in your shopp templates directory.

errors.php

<div class="shopp shopp-errors">
	<?php $msg = shopp('storefront','errors','echo=0');
	// Don't display Errors header after successful password recovery as it will confuse the customer
	if(strpos($msg, __('Check your email address for instructions on resetting the password for your account.','Shopp')) !== false
		or strpos($msg, __('Check your email address for your new password.','Shopp')) !== false): ?>
		<ul>
			<?php print $msg; ?>
	<?php 
	// Display a password recovery link when incorrect login password entered in checkout
	elseif(strpos($msg, __('The password is incorrect.','Shopp')) !== false && shopp('storefront','is-checkout')): ?>
		<h3>Errors</h3>
		<ul>
			<?php print $msg; ?>
			<li><a href="<?php shopp('customer','recover-url'); ?>">Lost your password?</a></li>
	<?php
	// For all other errors just display the error message as usual
	else: ?> 
		<h3>Errors</h3>
		<ul>
			<?php print $msg; ?>
	<?php endif; ?>
	</ul>
</div>