Component name in URL

I'm attempting to change the name of component fireboard in the url to something else.
I put the following in SEF Advanced/configuration/strings

fireboard=>bryllupsforum

But nothing changes. The url still shows as domain.com/fireboard/
(joomla 1.5)

Please advice.

Thanks.

You should not put that under "URL replace" but under "components with SEF extension".
Did you do that? Clear the cache too if you have it activated.

That's where I put it. Please see screenshot. Cache cleared, but it doesn't show.
Any ideas?

Put a comma between the pairs or remove the first pair (read the documentation).

that worked, Thanks.
you're the best!