Removing word with htaccess

I wanted to remove the word 'site' from URLs:

http://www.dontbeadesigner.com/site/blog/title

Would someone be able to recommend the easiest way to do this using htaccess.

I can change the directory structure, but I want to ensure that people who go to the old links will still get to: http://www.dontbeadesigner.com/blog/title

Thanks in advance