The problem is even more serious, because quite a few LabVIEW 7.1 VIs are getting posted these days. Yes, you need to upgrade your LabVIEW version. If you are still using 6.0, you're missing a lot of very nice new features. ;-).
As an itermediate solution, you could download the 7.0 evaluation version, which will expire after a while. If you qualify, you could also buy the 7.1 Student edition for your own personal use.