So how is it going? I got the very same rollers about a month ago and have really enjoyed them. Well, enjoyed them as much as one might enjoy rollers. I hadn't ridden rollers in such a long time that I had to get used to them again. I fell twice but nothing too terribly bad.
The other posters all have good advice. I would add that you shouldn't try to steer too much. If you really have to, make sure it is just a tiny bit. Otherwise you'll ride off the edge. Ride 'faster' than you normally would (that is, in a bigger gear/higher cadence) and try not to look down directly at the drums. Look ahead, especially when you think you're getting into trouble.
Eventually it will be as humdrum as a trainer...