The following is the installation steps for VM - Saferpay :
1. Go to the joomla backend - Extensions - Extension Manager,install the package directly.
2. Go to the joomla backend - Extensions - Plug-in Manager, find out the item - "VM - Payment, Saferpay". choose it and enable it.
3. Go to the virtuemart backend - Shop - Payment Methods - New, into the New page for payment method, in the "Payment Method Information", choose the "Payment Method" - "VM - Payment,Saferpay", then Save this page, after that you can click the tab - "Configuration", in this page,there are two situation :
A . Test mode - you just need to click the option - "Yes", then leave other parameter as default value,then you can test this payment method in the vm front-end.
B . Real mode - You need to click the option - "No" , then input "Your real accountId" in related textbox, then click the "Save" button to save your info. (warn : Please dont change the parameter : "SaferPay Hosting URL")
That's all .