The VDT comes with a tool to tell you what version of the VDT has been installed. For the command to work properly you must first 'source' the setup.csh or setup.sh file to configure your environment. When you do this the VDT version program it should be in your PATH.
cd <vdt-directory> source setup.csh (or source setup.sh) vdt-version
When you run vdt-version you will see something similar to the following output. Of course, the exact ouput you see will vary depending on which VDT version you have installed and which portion of the VDT you have installed.
You have installed the complete VDT version 1.2.0: Virtual Data System 1.2.10 ClassAds 0.9.5 Condor 6.6.5 EDG CRL Update 1.2.5 EDG Make Gridmap 2.1.0 Fault Tolerant Shell (ftsh) 2.0.5 Globus 2.4.3 plus patches GLUE Information providers, (CVS version 1.79, 4-April-2004) GLUE Schema 1.1, extended version 1 GPT 3.1 GSI-Enabled OpenSSH 3.4 Java SDK 1.4.2 KX509 2031111 Logrotate 3.3 Monalisa 1.2.12 MyProxy 1.11 Netlogger 2.2 PyGlobus 1.0 PyGlobus URL Copy 126.96.36.199 RLS 2.1.5 UberFTP 1.3