I am trying to install a web-to-print extension from ZetaPrints in Magento and am getting the error that the XSL module is missing. I thought by default the XSLT is included? If I do need to re-compile PHP to include XSL support, what should I do to make sure I don't screw up other sites. I followed the ISPConfig3 tutorial to do the installation on Ubuntu 9.04. Edit: I think I just figured it out. Can I just do: I am going to wait until this evening to do it so if someone could just say yay or nay I would appreciate it.