Registration Variables - register_activate_process

[citricguy]

I'm searching frantically, but I'm hoping someone can tell which vB variables I can use within the register_activate_process plugin hook

I'm looking to include the registration email address, userID, and username within the XML post below :|
$email, $userid, $username, etc...

I'm really new to this so please bare with me if this makes no sense...

PHP Code:

<xmlrequest>
    <username>hide</username>
    <usertoken>hide</usertoken>
    <requesttype>hide</requesttype>
    <requestmethod>hide</requestmethod>
    <details>
// I would like the vBEmail below
        <emailaddress>$email</emailaddress>
        <mailinglist>1</mailinglist>
        <format>html</format>
        <confirmed>yes</confirmed>
        <customfields>
            <item>
                <fieldid>1</fieldid>
//I would like the vB Username below
                <value>$username</value>
            </item>
        </customfields>
    </details>
</xmlrequest> 


--------------- Added [DATE]1215399537[/DATE] at [TIME]1215399537[/TIME] ---------------

Figured it out, sorry for the wasted thread...

$vbulletin->userinfo['username'];