redirection not working

my site is allot.com

I have a long list of redirection that not working…
here some:

1. http://www.allot.com/book/html/casestudy.htm
should go to: http://www.allot.com/company/worth-sharing/page-resource-library-2/

2. http://www.allot.com/media/int/mailers/html/NE_NR_Training_October_11_12_2005.htm
should go to: http://www.allot.com/company/worth-sharing/page-resource-library-2/

3. http://www.allot.com/media/news/CRN%2025705%20Comment.pdf
should go to: http://www.allot.com/company/news-and-media/newsroom/

but all these not working…any idea why?