You might need to be patient FF is a small company not unlike Xara they are also in the midst of two major things one being a new version and the second being a complete re write for a 64bit version which they say may be ready soon. I don't use the backup/Libraian because I have my own system of storing frequently used filters on my hard drive and setting up FF to find that folder. Also it may be worth waiting if you are planning on upgrading to FF5 when it comes out of beta as you will need to upgrade the backup and Librarian inorder for it work with V5

I will pass this on to a contact at FF and see if I can get them to post in this thread