This should delete one of the paypal options.. Let me know if it helps.
Edit your /catalog/checkout_payment.php file as follows:
Find this
-----------------
<td class="main" colspan="3" nowrap><?php
if ($selection[$i]['module'] == 'PayPal') {
?>
<big><b>
Credit Card
<img src="catalog/images/logo_ccVisa.gif" border="0" title=" Visa " alt="Visa" align="bottom">
<img src="catalog/images/logo_ccMC.gif" border="0" title=" MasterCard " alt="MasterCard" align="bottom">
<img src="catalog/images/logo_ccDiscover.gif" border="0" title=" Discover " alt="Discover" align="bottom">
<img src="catalog/images/logo_ccAmex.gif" border="0" title=" American Express " alt="American Express"align="bottom">
or
<img src="catalog/images/banner_intl.gif" border="0" title=" PayPal " alt="PayPal" align="bottom">
</b></big>
<br>
You do not need to be a PayPal member to pay by credit card.
<script>
document.writeln('<a style="cursor:hand" onclick="java script:popup=window.open('
+ '\'http://(your domain here)/catalog/CreditCardExplain.html\',\'popup\','
+ '\'scrollbars,resizable,width=500,height=600,left=50,top=50\'); popup.focus(); return false;">'
+ '<font color="blue"><u>[info]</u></font></a>');
</script><noscript>
<a href="CreditCardExplain.html" target="_blank"><font color="blue"><u>[info]</u></font></a>
</noscript>
<?php
} else if ($selection[$i]['module'] == 'Check/Money Order') {
?><big><b>Check or Money Order </b></big>
<img src="/check.gif" border=0 alt=" Send Us a Check " align="absmiddle">
<?php
} else {
echo '<big><b>' . $selection[$i]['module'] . '</b></big>';
}
?></td>
Replace with
-----------------
<td class="main" colspan="3"><b><?php echo $selection[$i]['module']; ?></b></td>
