HI all, we developed a DPS payment plugin for virutemart, www.paymentexpress.com
In total 2 plugins,
one is direct post plugin for DPS, it's one page compatible.
the other one is PX Fusion, PCI DSS compatible, so it's two steps checkout, but more secure.
Grab it here http://virtuemartoz.com/virtuemart-payment-plugins/dps-for-virtuemart.html (http://virtuemartoz.com/virtuemart-payment-plugins/dps-for-virtuemart.html)
Cheers!