Clean out old photos???

[fribse1]

Hi there

I've done a lot of upgrading on the host, and thus the folders with international characters now have the right letters showing.
Unfortunately some of the albums have pictures from the renamed folders, and now coppermine of course complains, and shows empty spaces for the missing pictures.
I tried using the admin tool 'remove filename' for that folder (not sure it's the correct term in english, as I have the site in danish).
But it still shows the images in the album.

How do I correctly remove the images from the album?