the settings in coppermine config "Target address for the 'See more pictures' link in e-cards" is labelled inadequatly, as it is not only used for the ecards, but on several other places as well. It should contain the url of your coppermine dir.
You can edit the ecard stuff in your language file (e.g. lang/english.php), find// ------------------------------------------------------------------------- //
// File ecard.php
// ------------------------------------------------------------------------- //
if (defined('ECARDS_PHP') || defined('DISPLAYECARD_PHP')) $lang_ecard_php =array(
'title' => 'Send an e-card',
'invalid_email' => '<b>Warning</b> : invalid email address !',
'ecard_title' => 'An e-card from %s for you',
'error_not_image' => 'Only images can be sent as an ecard.', //cpg1.3.0
'view_ecard' => 'If the e-card does not display correctly, click this link',
'view_more_pics' => 'Click this link to view more pictures !',
'send_success' => 'Your ecard was sent',
'send_failed' => 'Sorry but the server can\'t send your e-card...',
'from' => 'From',
'your_name' => 'Your name',
'your_email' => 'Your email address',
'to' => 'To',
'rcpt_name' => 'Recipient name',
'rcpt_email' => 'Recipient email address',
'greetings' => 'Greetings',
'message' => 'Message',
);and themes/yourtheme/theme.php, search for// HTML template for e-cards
$template_ecard = <<<EOT
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html dir="{LANG_DIR}">
<head>
<title>{TITLE}</title>
<meta http-equiv="content-type" content="text/html; charset={CHARSET}" />
</head>
<body bgcolor="#FFFFFF" text="#0F5475" link="#0F5475" vlink="#0F5475" alink="#0F5475">
<br />
<p align="center"><a href="{VIEW_ECARD_TGT}"><b>{VIEW_ECARD_LNK}</b></a></p>
<table border="0" cellspacing="0" cellpadding="1" align="center">
<tr>
<td bgcolor="#000000">
<table border="0" cellspacing="0" cellpadding="10" bgcolor="#ffffff">
<tr>
<td valign="top">
<img src="{PIC_URL}" border="1" alt="" /><br />
</td>
<td valign="top" width="200" height="250">
<div align="right"><img src="{URL_PREFIX}images/stamp.gif" alt="" border="0" /></div>
<br />
<b><font face="arial" color="#000000" size="4">{GREETINGS}</font></b>
<br />
<br />
<font face="arial" color="#000000" size="2">{MESSAGE}</font>
<br />
<br />
<font face="arial" color="#000000" size="2">{SENDER_NAME}</font>
(<a href="mailto:{SENDER_EMAIL}"><font face="arial" color="#000000" size="2">{SENDER_EMAIL}</font></a>)
</td>
</tr>
</table>
</td>
</tr>
</table>
<p align="center"><a href="{VIEW_MORE_TGT}"><b>{VIEW_MORE_LNK}</b></a></p>
</body>
</html>
EOT;
GauGau