I can't download the USPTO Direct software from the website, what went wrong?

The USPTO discontinued support of Legacy Private PAIR as of 11:59 PM Eastern Standard Time on 31 December 2006. The portalized version of Private PAIR was successfully deployed on 23 February 2006, with enhanced functionality relative to Legacy Private PAIR. The new Private PAIR system can be accessed from http://www.uspto.gov/ebc/index.html using the same .epf file and password that were effective in Legacy Private PAIR. Legacy Private PAIR users are encouraged to transition over to the new Private PAIR system prior to 31 December 2006. For questions/comments please send and e-mail to PAIR@USPTO.gov or call the Patent Electronic Business Center at 1-866-217-9197.

USPTO FAQ - Questions and Answers (12DEC2006)