It looks like package 0.2.4 is not correctly build, the files are not all under /usr (e.g. /usr/lib, /usr/bin, /usr/share) but all in the / directory (/lib , /share, /bin). Maybe someone could build a new deb?
If the files are at the correct location flipclock works but if I open the "second" settings screen (the one without the alarmsettings) I get an exception.
Let's see if flipclock still wakes me up tomorrow morning ... :-)
Edit: Yeah, that still worked, but now after closing flipclock the screen of my N800 still only dims and doesn't turn off. Hopefully that's because of the file-mixup and is solved in the next .deb.