WPF doubts

Decided to try out WPF a couple of days ago, and since information regarding it is still quite rare, and I hardly have some spare time I’m quite lost regarding the develop of big applications…

  • How can I open another window? they don’t have any Show() method like forms :?.

  • How can I make a MDI container? I haven’t seen any method or property either…

  • When adding a form buttons and other controls have their Win32 look, anyone knows if this is normal? and if so, how can I change the behaviour?

  • What are the new 3.0 project types for? I refer to those like the WPF pages…

Thanks in advance for your replies.