So you have the LE version which is a very, very limited version of the 5 year old PD15 release. It may be able to create a DVD with very basic video, like MPEG or wmv in the timeline.
To see if you can:
1) drag the Kite Surfing.wmv video to track 1
2) Click "Create Disc" on the top menu
3) Select 2D Disk and DVD for disc type and then the "Burn in 2D" in the lower right corner and see if you can burn or if you get a warning about upgrading.
Cyberlink does not have a great table to see exactly what's not supported in this limited LE version so trial and error and see when you get a warning about upgrading is the easiest way.
Jeff