Unwrap not working.

I have my model

Now i want to texture it.

i go into edit mode and press A to select all and then i press u and click unwrap but when i look at my UV/Image editor all i get is a strangely shaped rectangle. any idea whats wrong?

You need to apply seams (Ctrl+E) or use smart projection.

I just did some messing around and i pressed U and went to the bottom and clicked unwrap smart projection and i clicked OK. Is this OK? or is it wrong? iv never textured anything before and have no idea how to do it? Dose anyone have a good tutorial?

well i messed around without any tutorials again and i don’t like smart projection. Can anyone explain how to use seams i tried adding them but it turned out all wrong.