diff --git a/composer.json b/composer.json
index 7342d56..1776e0a 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,5 @@
 {
-    "name": "omnipay/paymentexpress",
+    "name": "onceit/omnipay-paymentexpress",
     "type": "library",
     "description": "Payment Express (DPS) driver for the Omnipay payment processing library",
     "keywords": [
@@ -16,7 +16,7 @@
         "pxpay",
         "pxpost"
     ],
-    "homepage": "https://github.com/thephpleague/omnipay-paymentexpress",
+    "homepage": "https://github.com/onceit/omnipay-paymentexpress",
     "license": "MIT",
     "authors": [
         {
diff --git a/src/Message/PxPayCaptureRequest.php b/src/Message/PxPayCaptureRequest.php
new file mode 100644
index 0000000..7b79b1f
--- /dev/null
+++ b/src/Message/PxPayCaptureRequest.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Omnipay\PaymentExpress\Message;
+
+/**
+ * PaymentExpress PxPay Capture Request
+ */
+class PxPayCaptureRequest extends PxPayAuthorizeRequest
+{
+    public function getAction()
+    {
+        return $this->getParameter('action');
+    }
+
+    public function setAction($value)
+    {
+        return $this->setParameter('action', $value);
+    }
+
+    public function getBillingId()
+    {
+        return $this->getParameter('billingId');
+    }
+
+    public function setBillingId($value)
+    {
+        return $this->setParameter('billingId', $value);
+    }
+
+    public function getRecurringMode()
+    {
+        return $this->getParameter('recurringMode');
+    }
+
+    public function setRecurringMode($value)
+    {
+        return $this->setParameter('recurringMode', $value);
+    }
+
+    public function getData()
+    {
+        $this->setAmount($this->getAmount() ? $this->getAmount() : '1.00');
+
+
+        if ($this->getAction()) {
+            $this->action = $this->getAction();
+        }
+
+        $data = parent::getData();
+
+        $data->RecurringMode = $this->getRecurringMode();
+
+        $data->BillingId = $this->getBillingId();
+
+        return $data;
+    }
+}
diff --git a/src/Message/PxPostAuthorizeRequest.php b/src/Message/PxPostAuthorizeRequest.php
index 115cc50..6f469b0 100644
--- a/src/Message/PxPostAuthorizeRequest.php
+++ b/src/Message/PxPostAuthorizeRequest.php
@@ -152,7 +152,15 @@ public function getData()
         }
 
         if ($this->getCardReference()) {
-            $data->DpsBillingId = $this->getCardReference();
+            // Card references have previously been generated by Onceit, since we are now going to rely on
+            // paymentexpress to generate this which comes back as DpsBillingId, so if we are using a 16 digit
+            // integer we know it's a DpsBillingId, otherwise, it is a legacy BillingId.
+            $key = 'BillingId';
+            if (preg_match('/^\d{16}$/', $this->getCardReference())) {
+                $key = 'DpsBillingId';
+            }
+
+            $data->$key = $this->getCardReference();
         } elseif ($this->getCard()) {
             $this->getCard()->validate();
             $data->CardNumber = $this->getCard()->getNumber();
diff --git a/src/PxPayGateway.php b/src/PxPayGateway.php
index eb03986..6929805 100644
--- a/src/PxPayGateway.php
+++ b/src/PxPayGateway.php
@@ -6,6 +6,7 @@
 use Omnipay\PaymentExpress\Message\PxPayAuthorizeRequest;
 use Omnipay\PaymentExpress\Message\PxPayCompleteAuthorizeRequest;
 use Omnipay\PaymentExpress\Message\PxPayPurchaseRequest;
+use Omnipay\PaymentExpress\Message\PxPayCaptureRequest;
 use Omnipay\Omnipay;
 
 /**
@@ -83,7 +84,7 @@ public function completeAuthorize(array $parameters = array())
     public function purchase(array $parameters = array())
     {
         if (!empty($parameters['cardReference']) && $this->getPxPostPassword() && $this->getPxPostUsername()) {
-            $gateway = Omnipay::create('PaymentExpress_PxPost');
+            $gateway = Omnipay::create('PaymentExpress_PxPost', $this->httpClient, $this->httpRequest);
             $gateway->setPassword($this->getPxPostPassword());
             $gateway->setUserName($this->getPxPostUsername());
             return $gateway->purchase($parameters);
@@ -105,4 +106,14 @@ public function completeCreateCard(array $parameters = array())
     {
         return $this->completeAuthorize($parameters);
     }
+
+    public function capture(array $parameters = array())
+    {
+        return $this->createRequest('\Omnipay\PaymentExpress\Message\PxPayCaptureRequest', $parameters);
+    }
+
+    public function completeCapture(array $parameters = array())
+    {
+        return $this->completeAuthorize($parameters);
+    }
 }