No, just insert it as suggested. Modify your custom theme as suggested below:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html dir="{LANG_DIR}">
<head>
<meta http-equiv="Content-Type" content="text/html; charset={CHARSET}" />
<title>{TITLE}</title>
{META}
<link rel="stylesheet" href="themes/terra/style.css" type="text/css" />
<script type="text/javascript" src="scripts.js"></script>
<!--
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_showHideLayers() { //v6.0
var i,p,v,obj,args=MM_showHideLayers.arguments;
for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
obj.visibility=v; }
}
//-->
</script>
</head>
<body>
{CUSTOM_HEADER}
<table width="100%" border="0" cellpadding="20" cellspacing="0" class="mainbkg">
<tr>
<td align="center" valign="top">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td height="90" align="center" class="maintitle">
<table border="0" width="100%" cellspacing="0" cellpadding="0">
<tr>
<td align="center">
<div class="gal_name">{GAL_NAME}</div>
<div class="gal_description">{GAL_DESCRIPTION}</div>
</td>
<td align="right">
<!-- Your Custom Code (e.g. paypal button) here-->
</td>
</tr>
</table>
</td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="5">
<tr>
<td align="right" valign="top">{SYS_MENU}</td>
</tr>
<tr>
<td align="right" valign="top">{SUB_MENU}{ADMIN_MENU}</td>
</tr>
</table>
<table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" class="mainblock">
<tr>
<td align="center" valign="top"><br />{GALLERY}</td>
</tr>
</table>
<table width="100%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td align="center" valign="bottom">
{LANGUAGE_SELECT_FLAGS} <br />
{LANGUAGE_SELECT_LIST}{THEME_SELECT_LIST} <br/>
{CUSTOM_FOOTER}
{VANITY}
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>