Hello Veronica,
From the reel pin, thread goes to the left round the top guide above the tension unit, straight down the right hand side of the tension, round the tension unit and back up the left hand side to the takeup lever, thread the takeup lever right to left, follow the cotton guides all the way down to the needle, thread front to back.
Before you thread the machine make sure the presser foot is up and the takeup lever is up, you can get a manual from sewing-machine-manuals.com
Ken
drivewithken
August 2009