The FieldPoint Explorer Installer prior to revision 2.0.3 will not detect a LabVIEW 6i installation. Version 2.0.3 and higher will detect LabVIEW 6i, but will only install the VI's for one version of LabVIEW on a computer. In order to use the FieldPoint VI's in both LabVIEW 5 and 6i, copy the fieldpoint folder (and it's subfolder) from one installation of LabVIEW to the vi.lib folder in the other installation. You can use an older version of FieldPoint Explorer (2.0.2 or lower) with LabVIEW 6i by choosing a custom install, selecting LabVIEW support, and pointing it at the LabVIEW 6i folder when it says that it can not find LabVIEW installed.
Regards,
Aaron G
LabVIEW Champion, CLA, CPI