You can also download a good version here http://programminghq.tk/ then goto downloads/OpenGL. but the unresolved external WinMain is something I see in win api programs. In a win api program WinMain replaces the main function. You think you can post the code that is in your main function, because if you learned a little win api while learning glut and you used it then that may be your problem.
Oh, sorry I don’t know what compiler that version was compiled on, but I know it was VC++, but must have been v 6 because the latest GLUT version was released in 2002…