Mini-Dvi Adapter Compatibility Issue

My wife has an IBook G4, 1.33 ghz Power PC, 256 mb ram, OS X 10.3.9.
Before you tell me that I should buy a better computer, I've tried to convince my wife, but she doesn't want to spend money on a new computer.

I recently tried to purchase a mini-dvi to s video adapter. Unfortunately, these adapters only work with the rectangularly shaped mini-dvi ports. Her iBook has the rounded edge mini-dvi port. Does anyone know where to find adapters for this type of mini-dvi port?

Thanks

 

Mini-VGA

Should this adapter work?

http://www.amazon.com/Apple-Video-Adapter-Mini-VGA-Composite/dp/B00008UAXP

 

Re: Mini-VGA

Thanks