Redirect problems

Hi,

I want to redirect an old url to a new one with 301 redirect.

My link looks like this: http://www.website.com/celebrity/alecia-moore/actor/13/
I want to be redirected to: http://www.website.com/celebrity/alecia-moore/profile/13/

I wonder how can I redirect values from string (ex. actor, musician...) to value (ex. profile) even if I don't know the url.

Can somebody point me to the right direction?

Thank you!