eeeeeee.

I know that if i looked somewhere, i would find answers to these very simply questions. Infact, i can almost hear the tutting. i confess i have no idea how to use blogger, and worse still, i'm lazy.
here are my questions, feel free not to help me!

one. how do i reply to comments that people have left
two. what am i doing wrong when i upload photos and they come out looking very odd. almost like a negative.

help!