It is really hard to use the Pen Tool and I searched for the internet on how to use it. I found this link http://livedocs.adobe.com/en_US/Illustrator/13.0/help.html?content=WS3C6154BD-44F2-4916-A5F7-2EF955065684.html, and bookmarked it.
I also bookmarked this Halloween pumpkin tutorial and I hope this link will help you, http://www.ndesign-studio.com/tutorials/halloween-pumpkin.
I started after lunch, I guess quarter to 2pm. I've done this trial and error because I had trouble with the software. It finished sometime at 6:55pm. It's worth the artwork.