can't find fuel line, please help

Hi!
I drove my MItsubishi Lancer 1993 on friday night, parked it, and
tried to start in on saturday morning.Won't start. Good battery, the
starter is running but not a sign of ignition (and yes, i filled more
gas from a can to be sure it wasn't just out of gas).
Now i want to check that it is getting fuel, but i don't know where
the fuel is supposed to get into the carburator. And yes, I feel
stupid. I don't know if it has a gas filter or where that is supposed
to be. I also want to try to pour gas straight into the carburator to
see if it starts then, but I'll have to find the fuel line for that.
I've disconnected several tubes and smelling for gas but I'm still
stuck.
Now, I hade put a lot of pictures of my engine on this page so maybe
someone of you could help me find the fuel line?
http://aukeonline.com/lancer/

If you see on picture 2 and 4, there is an opening there which looks
like there's supposed to be a tube there, but tubes don't usually just
disappear.