zipper+hoodie help

[nolliegirl.livejournal.com]

hello all of you talented people!

i looked through the memories under "zipper instructions", but it didn't have what i was looking for. i went to Joanns the other day and a lady that worked there was telling me how to insert a zipper into my hooded sweatshirt (like right down the middle) i didnt really remember what she said. something about basting, folded the edges over, i didnt really understand. so anyway, the question i have is: does anyone know/have/can show me/point me in the right direction of a simple tutorial about how to insert a zipper into a hooded sweatshirt? ive never used a zipper foot and dont know how to use it. sorry for the text only post, im posting my creations soon. thank you in advance.