I am trying to unzip the four emporers mod to my mod folder. I click winzip up and my options to extract are:

Year of the 4 emporers.ini
year of the 4 Emporers.civ4wodlbuildersave
civ4techinfos.xml
civ4gametextinfos.xml
civ4gametextinfos_objects.xml

Which one do I extract into the mods folder??

Create a new folder under Programfiles\firaxisgames\civ4\mods, eg Years. Each file belongs to a different folder:
- the ini file belongs to Civ4\Mods\Years\
- worldbuilder belongs to Civ4\PublicMaps\
- techinfos belongs to Civ4\Mods\Years\Assets\xml\technologies
- the remaining two go to Civ4\Mods\Years\Assets\XML\Text

Ask in the mod forum if the instructions above won't work.