admin error

[mintpeel]

Hi,

 

I have installed osCommerce and followed all the advice on here but i have come across a problem i cannot solve, basically everytime i try to naviagate away from the main admin page to change stuff, i get this error

 

Fatal error: Call to undefined method messageStack::size() in /home/tapintom/public_html/admin/includes/header.php on line 46

 

I have installed 2.2, and used the global_disable patch

 

i am on a linus server and i guess it must be running php5 since i had to use vger's upload line 31 fix

 

thanks for any advice in advance :D