[Dev-C++] Looking for a good tutorial

I thought I was doing well, traversing through theForger's Win32 API =
Tutorial, until I reached the simple applications part. That's when I =
realized I didn't have a firm grasp on the difference between windows, =
dialogs, and controls. He says, "controls are just windows" which =
doesn't make sense. I thought controls lived within windows. Resource =
usage is also a bit vague. It's an excellent tutorial but I need more =
theory. I know I need to go buy a book, but I'm a bit short on cash and =
the books are $50. Is there a good, extensive, online tutorial on C++ =
which explains MFC, OpenSource/GL, APIs, etc, then goes, from the =
beginning, explaining windows programming - dialogs, windows, resources, =
classes, etc. I'm pretty good with programming in a UNIX environment, =
but this windows stuff is very new, and very exciting.

Also, which is the best book to buy when I raise the finances?

Rob