A question about certificates and profiles

I’m really sorry about having to ask this question here as I’m not exactly a noob.

Most of the coding I’ve been doing over the past four years or so has just been me mucking around with stuff that I can play in the simulator.  However I want now to get stuff onto a device and eventually the app store.  The problem is I can’t for the life of me remember what certificates, profiles and things I need from the Apple dev centre (which has changed out of all recognition since I last logged in!).

If anyone could give me a few pointers I would be eternally greatful.

Many thanks

Chris

Old links from Peach that should still be valid today:

http://developer.coronalabs.com/forum/2012/01/10/ios-walkthrough-creating-your-certificates

http://developer.coronalabs.com/forum/2012/01/10/ios-walkthrough-testing-device-0

Check out http://fearby.com/article/how-to-build-your-first-cross-platform-mobile-app-with-corona/ 

Old links from Peach that should still be valid today:

http://developer.coronalabs.com/forum/2012/01/10/ios-walkthrough-creating-your-certificates

http://developer.coronalabs.com/forum/2012/01/10/ios-walkthrough-testing-device-0

Check out http://fearby.com/article/how-to-build-your-first-cross-platform-mobile-app-with-corona/