floppy: I hope you resolved your issue. I did not post back in December since Rich pointed out the fact that you can configure which editor Fluff uses.
For you or anyone else in the future looking for some guidance: the built-in Filetypes and Associated Apps dialog boxes in version 1.0.0 don't let you configure the commands to view and edit generic files, so you need edit the .fluff.conf file if you want to configure this aspect. Find the section "# Filetype Application Associations". The entries for "file, View" and "file, Edit" can be changed to specify some other execution command, such as:
file, View, xterm -e vi -R %s &
file, Edit, xterm -e vi %s &
In a future version I may try to make the default file application associations easier to manage through the GUI.