i don't use KDE, but i think either the terminology is backward, or you've got it backward. just from what you describe, it sounds to me that when it says "add a windows network drive," it doesn't mean add (share) a folder *from* linux *to* windows, it means add a "shortcut" *from* a shared windows folder or drive *to* linux so it shows up in konqueror. although i might be wrong about that since i don't use KDE.
regardless, to share directories FROM linux TO windows, you need samba installed and configured properly. there are tons of references out there (o'reilly being one of the best), so give that a shot and then report back if you have any problems setting it up.
also, it would be useful to fill in your distro under your name where it says "Distribution." that way people will have a better idea of what might already be installed on your system, what you're starting from, where your default folders and scripts are, what you need to do, etc. breaking up big blocks of text into smaller paragraphs is better for readability, too.