I would separate the clown from the anemone. If the maroon has taken to the anemone it will probably bother it continually - which is fine but if your anemone hasn't attached to anything yet this will kill the anemone. Place the maroon in a QT until the anemone has a foothold.
As for the anemone moving around - usually the anemone should attach to something (LR or Sand) within a week or so of introduction into the tank. Since its been two weeks and the anemone hasn't attached, i would be worried. Check all parameters and post them. Don't just say all is good, give us specifics (AM, NI, NA, CA, ALK, PH, Temp, SG, amount of flow). Low SG could be a reason for the anemone not getting comfortable.