ok, I guess I'm just confused on what it decides to pick to use. Maybe when I use the "recommend" button at the bottom, and post an update to fb, it uses my avatar, if I just "like" something, it uses the logo.og.png.
In this pic, on xenforo.com, I "like" this thread, and I get the logo.og.png, if I like a thread on my site, it used my avatar, but I didn't get a choice of what image to use.
Maybe it has to do with when the thread was created? I have 2 fb updates in this image, "liked" a few seconds apart, both posted and "liked" by me on the same site. The only difference is that one thread was created before 1.0.0. stable was installed.