It gets worse
I just checked the redistribution site for Flash while dealing with Acrobat - if you're using tools like SMS or Zenworks it'll get you MSI installers. They haven't updated the MSI installers since Janaury 26th, which is the PREVIOUS Flash update, not the current one from last week. Because, you know, you wouldn't want to use your fancy management tools to push out a critical security update to your enterprise.
And now back to Acrobat.
If you've got Acrobat Professional, you can't get updated installers. You have to install 9.0 and patch it - and the patches aren't cumulative. 9.0 > 9.1 > 9.1.1 > 9.2 and so on. However, if you install Acrobat Pro 9.0 and then Reader 9.3 (say you don't want Pro as a browser plugin), the Reader installer modifies the Acrobat Pro installation so it at least thinks it's 9.3. To the point where the 9.3.1 Acrobat Standard/Professional patch will install on top of it. The Reader 9.3.1 msp file, of course, still has to be applied to Reader separately. Mind you, the Reader installer modifying Acrobat Pro doesn't seem to be documented anywhere. Who knows if it's actually fully updating Acrobat Pro.
They're reaction when we asked them about updated install media last month? Confusion, pointing out that we can download the 9.0 installer from the volume licensing site, and saying "Well, you'll be able to update to 10.0 when that comes out later this year".