You'd have been better posting a link to the item you bought, but you can't do scart to HDMI with a simple cable anyway.
Scart is analogue only and HDMI is digital only, so you'd need an analogue to digital converter box inbetween.
The picture you posted looks like it might
be a Display Port? - http://en.wikipedia.org/wiki/DisplayPort
That can carry an analogue signal (I think?), and you can get a Display Port to HDMI adaptor, but that would only carry the digital signal to HDMI, so you'd still need a A/D converter box.