The first place to start is to learn LabVIEW. There are training courses available - both class room and on-line. Check out http://www.ni.com/academic/lv_training/how_learn_lv.htm and http://zone.ni.com/devzone/cda/tut/p/id/5054.
Then, you need to download the instrument driver for the instrument at http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=956.
Learn how to what a driver is and how to use it at http://zone.ni.com/devzone/cda/tut/p/id/4376 .
When you start to write the application program, the simplest way is to create an array of your frequency values. This would be wired into a for loop. Inside the for loop would be the driver functions for setting the frequency and taking a measurement. When you wire the array through the for loop to the frequency input of the function that sets the frequency, the array is automatically auto-indexed.
