No the pics are correct I copied them right from the website. (see link below)
A friend says the plugs are all conical but the plus version is for winter type racing weather rain/snow.
After talking to him I went back to the sight and noticed the STD version which then brought up more questions thats why I asked here.
I know it's probably not a big deal just like to be informed and don't want the wrong thing.

http://www.rc-toro.com/index.php/cPath/5