Maybe it's that you have to be signed out for it to work (haven't tried signing in) or it's setup to end in different areas of the world at different times as it's not specified when it'll stop working.In the coming months, the external Keyword Tool will no longer be available. To get keyword ideas, sign in to your AdWords account and try Keyword Planner.
:first:If you take the time to use the keyword planner - choose your keywords, create an ad group. Once you do, on the right side of the page, you'll see a button "Review Estimates". Once you hit that, you will see a graph and table. Under the daily estimates by ad groups table, you will see a header drop down that says Edit Match Types - there you can choose exact, phrase or broad and get the same data you are used to using.