XzoneSource Signup Problem

[gbghacker]

Can someone help me with this problem? please.
when i try to signup he say

Fatal error:  Call to undefined function  _() in /usr/home/.../public_html/torrent/signup.php on line 71

Please help me.

[3v0]

<?
Note: You need cookies enabled to sign up or log in
?>
<p>
<form method="post" action="takesignup.php">
<table border="1" cellspacing=0 cellpadding="10">
<tr><td align="right" class="heading">Desired username:</td><td align=left><input type="text" name="wantusername" size="40" onKeyUp="verifPseudo(this.value)" /></td></tr>
<tr><td align="right" class="heading">Pick a password:</td><td align=left><input type="password" size="40" name="wantpassword" /></td></tr>
<tr><td align="right" class="heading">Enter password again:</td><td align=left><input type="password" size="40" name="passagain" /></td></tr>
<tr><td align="right" class="heading">Security Image:</td><td align=left><img src="img.php?size=6"></td></tr>

<tr><td align="right" class="heading">Security Code:</td><td align=left><? $vImage->showCodBox(1); ?> <table width=250 border=0 cellspacing=0 cellpadding=0><tr><td class=embedded><font class=small>The security code is case sensitive.

</font></td></tr></table></td></tr>

The rest you can hopefully work out yourself as I've given you a start on whats needed changed