I've updated the program again, (since I use it everyday, there are many things that I add to try to make it better) and now it is much more reliable. It now also has options to set the Font Face Name to one of the following:
Dutch801 Rm BT Roman
Swis721 BT Roman
If i'm not wrong, the last two are fonts that are available on the Sony Reader so I imagine, the compiled books should also work on the Reader. (Maybe someone could try and let me know.
As an RSS extractor, it should be able to read most feeds from any site. Haven't yet found one that doesn't work. Then again, I haven't tried a lot of feed, only the ones that I use.
The program can be found at the Yahoo Librié Group file section
under content generation.
Any feedback is welcome.