Please try this link:
In reply to Rik Lee:
Sounds like your IT group has disabled you from downloading exe files.You should try downloading the 15.x free viewer if that works you should contact your IT group. Alternatively, you should try a different browser like firefox, safari, opera, chrome.
In reply to annoonan:
Sorry. I was able to download the viewer using both IE (6.0) and Firefox 3.5.8. Which browser are you using?