Help please with spb back-up

[Try619]

I know this might be a noob question but that's because I am a noob so please bare with me. I just backed up my device with spb on to my memory card and my device. My first question is, is it better to save on my device or memory card? Secondly now that I have saved my back-up on my memory card the pictures I once could view with no problem I cant view anymore because it says there is no application associated you must run the application first i'm lost i don't know what to do please help.

P.S. I hope i'm posting in the right forum.