I used the multi-server option and had some videos uploaded to it. I've since switched servers, and now the videos that were uploaded to the old server are still showing thumbs o my site, bu will not play, and will not allow me to DELETE. I get a message saying "FTP file delete failed. Check file permission : public_html/12025574951462943918.flv"

I know this is because the server is closed... is there a way (other than manually disabling the video) for me to delete it from my site? Right now I'm having to manually make the video inactrive and move it to a users private folder for its thumb image not to show up on the site.