I had a document saved in my email and when i added to the document and hit the save button, I assumed it had saved....I later could not find it. Is there a location that these documents go? It was attached in an email from another computer...I was using Microsoft 2007.

Is there a location that these documents go?

My understanding is attachments are stored in the .pst file unless you do a Save as and put it somewhere else. When you open an attachment, it is created as a temporary file in Windows default location for Temporary Internet Files and the folder should something like OLKCK. It might be there, but if you cleaned your Temp Internet Files, it might be gone. Or Outlook might have purged it - since it was temporary. I would look in those folders or Word's default saved file location. Did you try searching for a (hopefully unique) word in that document from Start > Search? Or Outlook's Draft folder?