TOPIC: printing the details of a 2nd member on a group registration

I'm trying to print the details of all group members in the registration email the system sends.
Currently my emails includes the fields below...but I only get details on the first member of the group. How do I include that info for all members?

There are [GROUP_NUMBER] people in your group:

{GROUP_MEMBER}
[TITLE] [FIRSTNAME] [LASTNAME]
[ADDRESS]
[ADDRESS2]
[CITY], [STATE] [ZIP]
[COUNTRY]
Phone: [PHONE]
Email: {/GROUP_MEMBER}[EMAIL]
{/GROUP_MEMBER}

I use the following ...
[LASTNAME], [FIRSTNAME] has registered for: [EVENT_NAME] on [EVENT_DATE].
Number of Records in this registration event: [GROUP_NUMBER].
{GROUP_MEMBER}
==============================
Name: [FIRSTNAME] [LASTNAME]
Addr: [ADDRESS]
CSZ: [CITY], [STATE] [ZIP]
Ph: [PHONE]
Email: {/GROUP_MEMBER} ============================== The "==============" are just nice separation for the person that needs to read the email - and makes it easy to see each registered individual[EMAIL]
{/GROUP_MEMBER}
==============================

The "==============" are just nice separation for the person that needs to read the email - and makes it easy to see each registered individual