You can download and install the evaluation version of LabVIEW
here.
The evaluation version of LabVIEW is the Professional Development Suite and has a 30 day license. If a evaluation license needs be extended you can request an extended license by emailing
frc@ni.com. Please note license extensions are granted on a case by case basis.
LabVIEW support for FRC teams can be found
here at the NI FIRST Forums.