The software pool is ready to be used under a version control system called environmental modules. This allows to have several versions of the same software package installed in parallel and is made for a user friendly activation and deactivation of software. "loading a module" is synonymous for "making software accessable". The only commands required to know are.
module avail
module help package/version
module load package/version
module unload package/versionTo see some hints, how the package is installed use
module show package/version
Loading a module manipulates the shell environment to make software visible for shell commands. Note, these changes of environmental variables like PATH are fully reversible, if a module is unloaded.
To learn more please read Modules home page 
.