Current Version: 7.1.0 (May 12, 2008) / 8.1.3 (November 5, 2008) /
9.3.3 (June 30, 2010)

direct download link:

Adobe Reader 7.1.0: (PPC Only)
[http://ardownload.adobe.com/pub/adobe/reader/mac/7x/7.1.0/enu/AdbeRdr710...][1]

Adobe Reader 8.1.3:
PPC Version:
[http://ardownload.adobe.com/pub/adobe/reader/mac/8.x/8.1.3/enu/AdbeRdr81...][2]
Intel Version:
[http://ardownload.adobe.com/pub/adobe/reader/mac/8.x/8.1.3/enu/AdbeRdr81...][3]

Adobe Reader 9.3:
PPC Version:
[http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3/enu/AdbeRdr930_...][4]
Intel Version:
[http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3/enu/AdbeRdr930_...][5]

Adobe Reader Update 9.3.3:
PPC Version:
[http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3.3/misc/AdbeRdrU...][6]
Intel Version:
[http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3.3/misc/AdbeRdrU...][7]

Compatibility
Architecture: PPC (Carbonized) x86 (Intel:Mac)

Version 7 is for Mac OS X 10.2.2 and higher
Version 8 is for Mac OS X 10.4.3 and higher
Version 9 is for Mac OS X 10.4.11 and higher

  [1]: http://ardownload.adobe.com/pub/adobe/reader/mac/7x/7.1.0/enu/AdbeRdr710_en_US.dmg (http://ardownload.adobe.com/pub/adobe/reader/mac/7x/7.1.0/enu/AdbeRdr710_en_US.dmg)
  [2]: http://ardownload.adobe.com/pub/adobe/reader/mac/8.x/8.1.3/enu/AdbeRdr813_en_US_ppc.dmg (http://ardownload.adobe.com/pub/adobe/reader/mac/8.x/8.1.3/enu/AdbeRdr813_en_US_ppc.dmg)
  [3]: http://ardownload.adobe.com/pub/adobe/reader/mac/8.x/8.1.3/enu/AdbeRdr813_en_US_i386.dmg (http://ardownload.adobe.com/pub/adobe/reader/mac/8.x/8.1.3/enu/AdbeRdr813_en_US_i386.dmg)
  [4]: http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3/enu/AdbeRdr930_en_US_ppc.pkg.zip (http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3/enu/AdbeRdr930_en_US_ppc.pkg.zip)
  [5]: http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3/enu/AdbeRdr930_en_US_i386.pkg.zip (http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3/enu/AdbeRdr930_en_US_i386.pkg.zip)
  [6]: http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3.3/misc/AdbeRdrUpd933_all_ppc.dmg (http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3.3/misc/AdbeRdrUpd933_all_ppc.dmg)
  [7]: http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3.3/misc/AdbeRdrUpd933_all_i386.dmg (http://ardownload.adobe.com/pub/adobe/reader/mac/9.x/9.3.3/misc/AdbeRdrUpd933_all_i386.dmg)