Depending on how I interpret your question I can come up with a couple answers.
If you're looking for a Smalltalk that is tightly integrated with Windows and allows applications to be developed that interact natively with Windows I suggest you look at Dolphin Smalltalk. However, this still uses a VM (virtual machine) to execute the Smalltalk code.
If you're looking for a Smalltalk that apparently compiles to native code under Windows NT you can take a look at Smalltalk MT.
If you want a Smalltalk that does not come with its own development environment, where you use a text editor to create source code files, I believe that GNU Smalltalk would fit the bill.
I hope this is helpful.
Addendum
Sorry, I managed to miss the part about tutorials. Although saying "Google for it" seems like cheating that's probably your best bet. Here's a few I found that way:
General Tutorials
Smalltalk for Java Programmers
Dolphin Smalltalk tutorial
Beginner's Guide to Dolphin Smalltalk
And although I didn't go check I believe there's a tutorial at the Object-Arts web site.
Smalltalk MT
Didn't find anything specific. Perhaps those more familiar with this product can comment.
GNU Smalltalk
GNU Smalltalk tutorial
VisualWorks Smalltalk
VisualWorks Smalltalk tutorial
Share and enjoy.