Need help badly Relationships getting me down with SQL server

Hey guys been awhile since i have posted here...schools been busy, which is what brings me here for now.

So i have a project for school that i need to make an SQL server. I created the note pad file for all the tables and i think i have all the keys i need but i can't figure out how i am supposed to build the relationships. Supposedly you can use the same PK for two tables but i thought that wasn't possible so i am really confused from top to bottom. So the project I have to take someone's DB design from visio and create it in SQL server 2008 from the virtual thing at school. I provided a link to my Dropbox folder with all the files. I really appreciate any help i can get.

https://www.dropbox.com/sh/y7t21cjav5wx6o7/Vfos1JHHxi

Thanks HF

I don't mind using skype for help either in this case or hooking anyone up with a favor...this class is killing me. Pulling a C just because of this project -_-


EDIT: my god do i love this site.....so DAMN fast!