Print Booklet is not capable of this imposition pattern. You'd need to either print to file and distill a PDF (Mac Snow Leopard) or to PDF (Windows & earlier versions of OSX) and then place that in a new .indd file, or purchase an imposition plugin of some sort. Many users here mention Quite Imposing for Acrobat as relatively inexpensive and capable of doing this sort of imposition.
Since we've been mentioned, you can either do this simple imposition with Quite Imposing 3 or Quite Imposing Plus 3. Both should be able to do it fine, but if you want to save your setups with an XML that you can use later you might like to check out Quite imposing Plus 3, which has Automation Sequences and many other advanced features.
Here is a temporary number for both so you can test drive it before you purchase.
Quite Imposing 3 Expires end 9/2011 Serial 2811-9610-7733-7066 Code 4275 Quite Imposing Plus 3 Expires end 9/2011 Serial 9460-7202-3654-0517 Code 6368Once loaded checked out Getting Started tech sheet - go to our Imposition Control Panel and click on the ? button.....then click the Getting Started button.cheers,Charles