There is another setting you need to turn on which I think will fix problem 3. "Options > Television > Advanced > Allow setup on clients"
You need to also set up drive mappings, EPG collection, and so on.
I linked to two threads. Was it the second announcement thread that you read?
NEW: Television tuners on clients are allowed to be used for recording It wasn't clear if you had from your post.
If you haven't read that second thread, I recommend that you do, and if you still have problems, post in that thread to get help. Yaobing will see your posts (probably already has seen these) and can help more than I can.
Note: I did think that this, your problem 1, may be an issue:
You can't run TV setup on the server with no tuner attached
I'm not sure if that is catered for in the current functionality. I don't have the hardware to test. Well, not easily. No time today either. Sorry.