Base SDK 3.0 to SDK 4.0
<p>I installed SDK 4.0 and found that I lost access to all previous SDK versions prior to 3.2.</p>

<p>I have found a link to download SDK 3.1.3 so I have both .dmg install files.</p>

<p>Questions:</p>

<p>Does SDK 4.0 not allow access to earlier version?  </p>

<p>If the answer above is no then does that mean I have to have two versions of SDK installed?</p>

<p>If yes to the above....how?</p>

<p>Thanks in hope</p>
