Are you promoting their product? If so, then most likely they will be happy to give you permission to use their image. When in doubt ask. There have been many times that I have used copyrighted content with full permission after simply asking. Now, if you're not promoting their product, they may take issue, hard to say.
actually to be honest, it's just an info site. I'm basically going to talk about the product and needed some pics. me saying you can get this "thing" from "this" site is all the promotion i'm really giving them.
I usually email people before asking, and if they dont answer, I use them and stick a llink up. 9 times out of 10 they're not going to complain...and the worst youre going to have to do is remove them.