cloudsurfer said..
Please do yourself and everyone a favour and ask for kiteboarding lessons instead. The gear you're looking at seems very outdated and unsafe to ride let alone learn on. Professional lessons from a certified instructor are crucial to learning kiteboarding. Not only will you learn properly and safely, you will have the chance to try the sport out first before investing in gear and you'll learn about suitable gear for learning on. Your instructor will probably even help you look for your first safe set of gear.
Kiteboarding is a great sport which will provide you with years of absolute fun but it's important not to forget that it can be dangerous and professional lessons will give you the foundation you need to enjoy kiteboarding safely.
Kite boarding is fun and relatively easy to get started at.
The offset is how easy it is to get into trouble. like cloudsurfer said, get lessons first
About 2 years ago we had a guy down here using some older gear,
He did get 1 lesson and then used some cheap, older gear with less depower, and less or different safety systems
ended up unconcious on the highway after dragging through the shallows.
He only stopped on the highway cause his kite hit the power lines
Its a great sport, and an awesome feeling to progress but...
Get lessons first