It looks like the Redlake VIs from ImageMill allow you to write serial commands to your camera. In LabVIEW, you should be able to write your own serial commands using the Serial Read/Write examples that ship with LabVIEW.
I'm curios exactly which Redlake digital camera you have. Redlake cameras are often found under the names Roper (their parent company) or Kodak. I suggest going to www.ni.com/cameras to see if there is a camera file written for your specific camera. If not, please go to www.ni.com/ask to contact an applications engineer.
Kyle V