Were can i get tuts on level editors etc . And how to program one. What is used to program one. Like mfc or straight c++ code.

Can''t recall seeing any tuts on this subject. My advice: google for Mappy Win32 and have a look at it''s sourcecode.

2DNow - for the 2D game developer in you

It depends on what kind of a level editor you want, for example Im working on having a user designed map work through Digiben''s (http://www.gametutorials.com) Maze 1 (so i dont have to buy his cd that has Maze 2 cuz my parents are paranoid about sending stuff over internet)
I made the map editor using header file fstream.h''s ofstream so that you make the map through console output (DOS if you will). Since im not really the best at explaining things go to http://www.gametutorials.com/Tutorials/c++/Cpp_Pg3.htm
and download Digiben''s writing to a file tutorial.
Keep in mind you might want to learn his reading from a file
(http://www.gametutorials.com/Tutorials/c++/Cpp_Pg2.htm).

as for making a graphical level editor, i cant really help you there

Hope this of help.