First one: I hope this is the right room as it does have a Pentax lens mount?

Second: Now, regarding this Pentax lens mount. Am I correct in thinking that if I get a Pentax K - Tamron adaptall (2) adapter, I can use my Tamron lenses? Of course they will be manual focus, but will it be stop-down metering or will auto work? I assume the shake reduction will also work if I go into the menu set-up and set the focal length for the lens.

Third: Can I use all the K mount lenses on the Samsung (ie K, Ka, Kf etc)?

The Tamron adaptall lenses I want to use are the 90mm f/2.5 macro (with and without extension tubes) and 17mm (if that makes a difference).

I'm not a complete Pentax novice, as I did have a Pentax Auto 110 set