registration_activate_process variables problem

[citricguy]

I have a plug-in I'm working on that is running at the registration_activate_process hook. (Is this the best place to be running code "post-signup/email confirmation?"

I am using these variables:

PHP Code:

$username = $vbulletin->userinfo[username];
$email= $vbulletin->userinfo[email];
$userid= $vbulletin->userinfo[userid]; 


Here is my problem.

60% of the time that the code is run, the actual username is found in the variable (for example: $vbulletin->userinfo[username] = <registering users name>), the other 40% of the time, the variable contains "Unregistered" or the default "guest" user(?).

Is there another hook location that I should be using or another variable that will always capture the "user currently confirming their email address?" For reference, here is the plug-in I'm working on.

PHP Code:

$username = $vbulletin->userinfo[username];
$email= $vbulletin->userinfo[email];
$userid= $vbulletin->userinfo[userid];


$xml = "<xmlrequest>
    <username>hidden</username>
    <usertoken>hidden</usertoken>
    <requesttype>subscribers</requesttype>
    <requestmethod>AddSubscriberToList</requestmethod>
    <details>
        <emailaddress>$email</emailaddress>
        <mailinglist>1</mailinglist>
        <format>html</format>
        <confirmed>yes</confirmed>
        <customfields>
            <item>
                <fieldid>1</fieldid>
                <value>$username</value>
            </item>
            <item>
                <fieldid>2</fieldid>
                <value>$userid</value>
            </item>
        </customfields>
    </details>
</xmlrequest>
";

$ch = curl_init('http://www.hidden.com/email/xml.php');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
$result = @curl_exec($ch);
if($result === false) {
    echo "Error performing request";
}
else {
    $xml_doc = simplexml_load_string($result);
    //echo 'Status is ', $xml_doc->status, '<br/>';
    if ($xml_doc->status == 'SUCCESS') {
        //echo 'Data is ', $xml_doc->data, '<br/>';
    } else {
        //echo 'Error is ', $xml_doc->errormessage, '<br/>';
    }
} 


For reference: http://www.interspire.com/forum/showthread.php?t=10505

--------------- Added [DATE]1215820833[/DATE] at [TIME]1215820833[/TIME] ---------------

I think I may have pinpointed the problem... help!

So when I have cookies disabled during registration I get:


PHP Code:
$vbulletin->userinfo[username] = Unregistered

And when cookies are enabled during registration I get:


PHP Code:
$vbulletin->userinfo[username] = Correct User Name

tested that theory 4 times now and it seems to be accurate.

Any ideas for always being able to collect data from $vbulletin->userinfo[username] even if cookies are disabled on the userside during the registration_activate_process hook run?