FIXED. Thanks, Nexus. Nowhere on the sfgui instructions does it say this though, or maybe I'm blind, they seem outdated anyway, initially nothing worked based on the instructions, but I figured it out eventually.
For those who find this via google, there should only be 1 project called "sfgui", just add:
SFMLDIR/extlibs/libsmcsv/x86 or x64, then add this to additional libs: glew.lib.
Thanks again!