keep working on the casting and it will come....your pin will get worn in more as you use it and it will spin quite a bit better from one season to the next.....as far as casting goes it's all a matter of practice, but the main difference I found switching from a baitcaster,if I remember correctly, was using the CP is more like "swinging" the the weight through the air, meaning you must use your arms AND your shoulders.... whereas the baitcaster was more like a spinning reel cast, they are somewhat different.
merc is right about letting the reel start to spin before the cast actually starts, but another real key is your release point, Ie: where you arms and shoulders stop moving at the end of your swing is critical, it will improve your power and acuracy...
hope that helps,
rib