A local business owner recently offered me the opportunity to make a few simple additions to his companies website. I have a little experience in web design but Im a bit rusty because it has been a few years. I have created a few class project websites from scratch, but never updated a site that someone else created before me.

I am hoping someone will be able to point me in the right direction. I just need to know what I need to ask this guy for (source code?), and how to access it to make the additions. I will be using Adobe CS3.