The new release 0.55.1-5maemo1 is out and is also available via extras-devel now

The screenshots for the savegames are working now and you can take screenshots with Shift-S. You'll find them in ~/.d1x-rebirth/screenshots/ as pcx (Yes, this is a crappy format but DXX-Rebirth doesn't support anything else, maybe there will be png-support some day...).

You can also find a libsdl-mixer package with flac and vorbis support on garage. This will make the jukebox working.
I've put everything into a tar.bz2 because garage got some problems with + in filenames. Just unpack it and install the deb inside.