Joomla Virtuemart Payment Gateway Notify SCript

Joomla VirtueMart 2 I have a [login to view URL] script that accepts some parameters from a hosted payment page payment gateway via form post the script needs to - retrieve the Order from VirtueMart (the order_id is one of the post params) - update the order status to Confirmed 'C' - add a comment to the order The script must use the native VirtueMart methods so that all the other processes are executed when an order status is set to confirmed, such as: new invoice created, customer notified, etc. You cant just set the status to confirmed and set customer_notified to 1. This is easy but it doesn't work the same way as a native call would. I have a partial script already created and you wont need access to the hosted payment page, just modify the script to accept the order_id and do the above processes. Please only bid on this job if you have experience with Joomla Virtuemart custom code and / or the development of payment gateways for J&VM Job is urgent and more work is available if you can complete this task correctly and fast I have attached the script that will set a hardcoded orderid then do some simple status updates, etc. but the script is not correct as it doesn't use native methods