Why are my Microsoft Outlook 2010 folders and contacts gone?

One day my Microsoft Outlook 2010 email is fine (I use it everyday in my office) and the next day I come in and all of my named/created storage folders are missing, all my contacts are missing, and it was receiving 3,000 some new unread emails. Emails I had already read and stored in the appropriate file. The only thing I had done the night before was to move all of my document files onto my server folder, and delete them from my computer. (I had files in different places and wanted to have it easier to find everything.) When I noticed the problem I restored the files back from the trash. I then did a System Restore from a few days earlier. Still no good news. Where did all my folders go, and where is all my contacts?
Thanks!