Thrush,
I take it you mean to update the composite connection you have, is that where the picture is clear ?
To be honest, if you are using composite with a 14" TV, it will be clear regardless, try a 36" widescreen or more and it will be a different story altogether.
The above plug WILL ONLY WORK if your TV can accept s-video on the scart connector though, it won't convert to anything.