Absolutely download the PDF version of the current practice tests. This will be go GOLD when studying for the new test because the info on the old test is still relevant for the new test and the AAMC is only releasing one, I repeat ONE (the one that is out now), new practice test for almost the rest of the year. The AAMC is still the AAMC and after looking through the new test their style is not changing too much, so taking the old practice tests will help you get in tune with their style of asking questions and their difficulty (of course also while testing your content knowledge to an extent and your overall application skills).