The VI you attach does not perform a Swept Sine analysis but a Zoom FFT analysis
This example ships with NI-DSA and is available for LabVIEW 6.0 from :
http://digital.ni.com/softlib.nsf/websearch/E497D1707F9868478625694300761ADF?opendocument&node=132060_US
Please also note that NI-DSA 1.2 is now available and our web site will be updated very soon.
NI DSA 1.2 includes new examples as well as a Software user manual.
This user manual is available for download at :
http://digital.ni.com/manuals.nsf/websearch/032430F78301D4A986256AC7004DFC52?OpenDocument&node=132090_US
I hope this will help.
Gerald