Shawn,
The format of the file store (converting from a vault file path to how the data is stored on the disk at the server-side) is not something that the Autodesk team publishes. If you have access to a programming staff it's quite likely that they could easily code a custom piece of software that would suit your needs nicely using the Vault SDK. The code I am thinking about (off of the top of my head) would accept a Vault path ($/MyFiles/mypart.ipt) and download and view the file using Inventor viewer.
Ken Vadella, Autodesk Software Engineer.