I'm sorry to go grave digging or anything, but I think I can add a few things to this.

I can't speak for Sunwolf, but Runes have a lot of lessons that are easy to miss. They go a lot deeper than they seem to though, so you do have to be able to read between the lines. They can be completely obvious and horribly subtle. It all depends. Just like any other method of divination you have to use your best judgement.

Every Rune has a lesson or ideal. They're not just for reading the future. In fact, you really have to do more than Runecast to really get a feel for what they mean. Some meanings come harder and need an example. I had a hard time with the Jera, personally. It depends on the person really. As for other uses for runes, I know there's Galdr, but I haven't gone into that a whole lot.

I hope that helps.