Some hint about any actual problems you're having might make it a bit easier for someone to help. Little things like what controller, interface, operating system, version of FMS, what you've done and what happens....that sort of thing
.
Unless you really mean you "cant get FMS" in which case you can get it from
http://n.ethz.ch/student/mmoeller/fms/index_e.html under Downloads. There, wasn't that easy
.
Steve