I had loads of trouble doing this but I found that this worked for me:
1) Take original dbox services and bouquets and with a good text editor (notepad or better) remove all tabs and empty lines.
2) Download d2d.exe and place it in the same directory as the services.xml and bouquets.xml
3) Run d2d and select option 2 (convert services and bouquets).
4) Next step is to open up the ubouquets.xml and then manually edit the frequencies by rounding up/down so that they match up with services.xml
5) All done. Upload the services.xml and ubouquets.xml to the dreambox and it should work.
1) Take original dbox services and bouquets and with a good text editor (notepad or better) remove all tabs and empty lines.
2) Download d2d.exe and place it in the same directory as the services.xml and bouquets.xml
3) Run d2d and select option 2 (convert services and bouquets).
4) Next step is to open up the ubouquets.xml and then manually edit the frequencies by rounding up/down so that they match up with services.xml
5) All done. Upload the services.xml and ubouquets.xml to the dreambox and it should work.