what should i do to make the error above gone? crucial time right now...

Did you put commas in the list of libs that you're linking? Don't use them. It should be:

opengl32.lib glut32.lib

but not:

opengl32.lib , glut32.lib

i've done what you told me to do, but there's still some error. what should i do next?

--------------------Configuration: Lesson19 - Win32 Debug--------------------
Linking...
Lesson19.obj : error LNK2001: unresolved external symbol _auxDIBImageLoadA@4
Lesson19.obj : error LNK2001: unresolved external symbol _gluPerspective@32
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/Lesson19.exe : fatal error LNK1120: 3 unresolved externals
Error executing link.exe.

Lesson19.exe - 4 error(s), 0 warning(s)

You'll need to also link against glu32.lib and glaux.lib

cheers
sam.