LIFA comes with an Analog Read Pin example. In recent versions of Labview use Help > Find examples > Search > "Arduino" to find the Analog Read Pin example. The LIFA uses a simulation of an Analog voltmeter to display the output.
However, I advise you to upgrade to LInx. LINX comes with an Analog Read One Pin example and provides a simulated strip chart display. Near the top of the Discussions front page is an announcement for LINX which contains a link to a Getting Started page.
hrh1818