[MTT users] Where do I start?

[brown wrap]

I have download the installed the MPI Test Tool, but don't have a clue as to 
where to start. I want to make certain the version of OpenMPI that I have 
installed is working. I have three clusters and would like to run the tool on 
all three to get some benchmarks. To be honest, The instructions are confusing 
to me.Thanks
Greg