Check for enterprise & version

Enterprise version check.php

<?php
$enterprise = Mage::getConfig()->getNode('modules/Enterprise_PageCache/active');
$checkForVersion = ($enterprise ? '1.12' : '1.7.0.0');
if(version_compare(Mage::getVersion(), $checkForVersion, '<')) {
    $this->setTemplate('blockip/sales_order_view_info_16xx.phtml');
} else {
    $this->setTemplate('blockip/sales_order_view_info_17xx.phtml');
}