your temps are fine. The core temp as your GPU is fine also. They are not dangerous temps. That GPU can get pretty hot, but 61c is fine. My friends 8800GT gets to 75c on a full load, and that is fine also. Also I'm pretty sure that card can get to 80c-90c without ruining it. I wouldn't reccommend those temps...but you get the idea.
You can change the temp in settings in speedfan so you don't get that fire symbol All of them are set at 50c.