Posted: 21/07/2013 at 21:56
The only thing I'd add is if you plant out your rose now, you must continue to water it as if it was in its bucket for at least six months - the roots won't have spread far enough to support it until next spring and even then, don't let it dry out next summer, either.
It's quite a large rose, and does need adequate water. Don't worry about pruning it hard back - that is really for bare-root roses not pot-grown ones.
Just prune it normally to stop wind rock in autumn, and as normal in spring.