@kim1406:
What ixtab said
. Although, to be extra safe, I'd insert 'install the bridge' between 1. & 2. (Technically, the jailbreak [since v1.7.N, at least] should take care of it, but you never know ^^).
And 3., yep, everything I released has now been tested on 5.3.0, since that's what I'm running too
.