2
it should be in your original download zip file of xoops...
failing that you can always download the package again, and search in modules/system/templates/blocks/system_block_user.html
it's advisable to never edit the default templates.. for this obvious reason you have now discovered.. if you clone the templates 1st and then edit them, you will laways have the default template set to fall back on should something go wrong..
here's the html for the system_block_user block.. >
<table cellspacing="0">
<tr>
<td id="usermenu">
<a class="menuTop" href="<{$xoops_url}>/user.php"><{$block.lang_youraccount}>a>
<a href="<{$xoops_url}>/edituser.php"><{$block.lang_editaccount}>a>
<a href="<{$xoops_url}>/notifications.php"><{$block.lang_notifications}>a>
<a href="<{$xoops_url}>/user.php?op=logout"><{$block.lang_logout}>a>
<{if $block.new_messages > 0}>
<a class="highlight" href="<{$xoops_url}>/viewpmsg.php"><{$block.lang_inbox}> (<span style="color:#ff0000; font-weight: bold;"><{$block.new_messages}>span>)a>
<{else}>
<a href="<{$xoops_url}>/viewpmsg.php"><{$block.lang_inbox}>a>
<{/if}>
<{if $xoops_isadmin}>
<a href="<{$xoops_url}>/admin.php"><{$block.lang_adminmenu}>a>
<{/if}>
td>
tr>
table>
hope this helps