halp an iconist?

[consequences.livejournal.com]

I'm wondering what the policy (generally) for iconing fanart is. I've seen a lot around and it seems like crediting them in post/resources list is the right thing to do, but is there anything beyond that? I would contact them but I can't read any Japanese and my computer messes up all the displays on the sites; I've only figured out how to get to the pretties.

Kind of a noob to iconing doujinshi/whatnot so please don't yell. 8D;

Thanks in advance.