Trying to send HTML email but coming through as text email

Hi,

I am trying to send html emails from my application running on a geronimo server on windows and using eclipse for development.
When I run this code on the J2EE preview server it works but when i run it on Geronimo is doesnt.

Here is the code that sends the email where i have added comments shows other code i have tried.

Beneath the code the email that comes through to outlook 2000
Thanks

Session session = Session.getDefaultInstance(props, null);
Message msg = new MimeMessage(session);

msg.setFrom(new InternetAddress(from));
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(
to, false));

msg.setSubject(subject);

StringBuffer sbuf = new StringBuffer(body);

msg.setContent(new String(sbuf.toString().getBytes(), "iso-8859-1"), "text/html; charset=\"iso-8859-1\"");
msg.setSentDate(new Date());
//msg.setHeader("Content-Transfer-Encoding", "7bit");

Transport.send(msg);

Also Tried

HtmlEmail email = new HtmlEmail();
email.setHostName(props.getProperty("mail.smtp.host"));
email.addTo(to);
email.setFrom(from);
email.setSubject(subject);
email.setHtmlMsg(body);
email.send();*/

Result:

MIME-Version: 1.0
Content-Type: text/html; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><=
meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DISO-8859-1"=
/><title>GEQ004A_quote_1207.html</title></head><body><%@ include view=3D"gl=
adiator_mirror_page_left" %><table width=3D"600" border=3D"0" cellspacing=3D=
"0" cellpadding=3D"0"> <tr> <td width=3D"200" height=3D"10" bgcolor=3D"#=
009933"></td> <td width=3D"350" bgcolor=3D"#009933"></td> <td width=3D=
"50" bgcolor=3D"#009933"></td> </tr> <tr> <td valign=3D"top"><table wid=
th=3D"200" border=3D"0" cellspacing=3D"0" cellpadding=3D"0"> <tr> =
<td><a href=3D"http://www.gladiator.co.uk/?media=3Dqfuem"><img src=3D"http=
://localhost/GladQE/pages/gladiator/emails/GEQ004A/gc_home_pic_top_0806.jpg"=
width=3D"171" height=3D"112" border=3D"0"></a></td> </tr> <tr> =
<td><a href=3D"http://www.gladiator.co.uk/?media=3Dqfuem"><img src=3D"h=
ttp://localhost/GladQE/pages/gladiator/emails/GEQ004A/gc_home_pic_bot_0806.j=