If you need help with installing myVault, please go to the Installation Page and all will be made clear.
myVault is a program designed to help you file away securely and subsequently easily find your notes, reference materials, and documents.
myVault contains three main types of objects: Categories, Items and Documents.

Image: Main Window with Descriptive Text
Categories are used defined (using the System Setup window) and designed to help you apply some structure to your Items and Documents. The key is not to 'over think' your structure, the search facility will let you find your Items and Documents easily.
An Item is a simple database record which consists of a Title and a Description. Items are created in Categories. Items can also be encrypted using a Shared Secret with up to 384 Bit BlowFish Encryption.
A document is any kind of file that exists on your computer. Documents can be dragged and dropped (either COPIED or MOVED) against any Item. The document (or it's COPY) will be put in the folder specified in the Preferences, and within that in a subfolder named as the first letter of the document name.
Example, TEST.JPG on the Mac will be stored as ../DOCUMENTS/T/TEST.JPG or on Windows ..\DOCUMENTS\T\TEST.JPG. Documents can be stored on a shared volume using a mechanism such as Dropbox, making these documents available from any of your devices including iPhone / iPad etc.

Image: Directory Structure on Mac OSX
myVault is focused on the storage and subsequent fast retrieval of Items, Documents and Files, using any word, or part of a word, contained in either the item title or descriptive text. Note that myVault does not search the contents of documents or files, only the document name.
Searching is done from the Grid View (an alternative view and interface to your information), accessed from the Utilities Menu or via the (Cmd - Mac) / (Ctrl - Windows) + G Key.

Image: Grid View
Adding a Category is done from the System Setup window, accessed from the Utilities Menu.
Adding an Item is done by clicking the Addition Button on the Action Bar.
Note that either the Shortcut Key Cmd-S (Mac OSX) or Ctrl-S (Windows), or selecting Save from the File Menu, can be used to Save an Item. In addition an Item is automatically saved when you leave an edited Item and select another Item.
Documents are added by dragging them and dropping them in the Documents Area of the Main Window.

Image: System Setup Window

Image: Adding Items and Documents
