This is a little tool I wrote to show a TFS work items history. It allows the user to select the fields they want to see, and compare each revision of the field through the life of the work item.
GetHistory is a windows app that shows the history of a workitem in an easy to read and compare format.
Select a Collection, Project and then enter your work item ID, and GetHistory will populate a grid and treeview with all the revisions of that work item. The fields that change between revisions will be in reb and those that don't black.
Use the Fields to Ignore tab to turn off the fields you don't care about.