Blight?

[Mamsoth]

I've been growing these spud plants in the back garden and was wondering if they may have the dreaded blight! Growing is a new past time for me but even the 'greenest' newbie could tell these plants aint right. What, then, is the diagnosis? Any help would be really appreciated.

Thanks a bunch

Matt

***Not sure why the pictures have come up sideways, I oriented them correctly on photo bucket but they seem to have reverted to their prior format, but you still get the idea***