Remote Access: Upgrading Package Problem!

Hi, i've been using WHM Remote Access for a while now and i have been able to use it to a certain extent.
Create Accounts
Terminate Accounts
Change Password
Output Service Status and Server Information
Unsuspend Account

However... i'm having trouble with upgrading accounts When it gets to the point where the php script should upgrade or downgrade the package in WHM i get a 'WHM Login' form. What am i doing wrong?

The Script works for the above listed functions!

PHP:

// CONNECT STUFF...

// LOTS OF STUFF IN THE FILE

// OTHER FUNCTIONS THAT WORK FINE...


// UPGRADE/DOWNGRADE ACCOUNT
   $do = changepackage($host,$user,$accesshash,$usessl,$user,$package);
if (eregi('Changing max sub domains', $do)) {
 // do other stuff  
}


In whmfunctions:

PHP:

 function changepackage ($host,$user,$accesshash,$usessl,$user,$package) {
    $result = whmreq("/scripts2/upacct?user=${user}&pkg=${package}",$host,$user,$accesshash,$usessl);
    if ($cpanelaccterr != "") { return; } 
    return $result; 
}