Hi,
have a look at the following URLs.
http://digital.ni.com/public.nsf/websearch/6f80a168949d5799862569310076f14b?OpenDocument
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/a6ab00c4729bbbc186256737005245c6?OpenDocument
To get from 3.x to 6.0.1, you need to go through 4.0 which can then be read by 6.0.1
The conversion kit is free - just contact your local NI representative, or office.
Hope that helps
S.
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