The Potty Diaries ... on hold?

Ah, potty training! If you've been through it, please, um, HELP!

Christopher is great about sitting on the potty, but he's not actually going in it yet. He hides in the closet to "go"! So if you have any good tips, please post a comment. Adam and I would love to hear your ideas.
And the poor guy gets really frustrated when he sits there for a few minutes and nothing happens. So we're trying not to pressure him, just encourage him as much as we can.

We're praising him for trying. But how do we help him to actually "go" in the potty?

We have till Thanksgiving until baby #2 is born, so we have about 6 months, give or take, to complete potty training. Is that doable? I hope so!

Coppelia, Adam and Christopher-in-training!