There has been an error in the VM1.1.5 hack for VirtueUpload. The order-id's ware not added to the upload. Please redownload the patch and upload it in the VM-updater.
The file \components\com_virtuemart\themes\default\user_class\ps_checkout.php is added to the patch.
PLEASE NOTE:
In VirtueMart 1.1.5 VirtueUpload uses the user classes. This means that there are no core-files of VirtueMart are changed. All changes are made in the template directory. This way the changes are preserved when you update VirtueMart.This means you have to allow the user classes. This is done in the “security” tab of the global VirtueMart configuration.