Always use a timer or remote when on a tripod. Just pressing of the shutter button is enough to cause motion blur. Also if that camera has any type of image stabilization you'll want to turn that off as well when using a tripod.The first few without my brother's coupe in the background were on the trypod. However knowing how to use the camera would benifit me the most...
I have a trypod, but it's just a cheapo that I have had for a while. It's no where near steady, which I think is causing the out of focus look. My next purchase will be a better one.