Appliance Upgrade Guide/content/support/library/appliance/v781/upgrade_guide/first.aspx
These instructions cover the upgrade of Websense V-Series appliances from version 7.6.x to 7.7.x and v7.7.x to 7.8.1 for the following Websense solutions and platforms:
* Web Security, Web Security Gateway, and Web Security Gateway Anywhere
* Email Security Gateway and Email Security Gateway Anywhere
* V10000 G2 and G3 and V5000 G2 appliances
Click View Complete Document for more.