Hi @andel,
If you want to write/run programs on a Dreambox, have you thought of using linux shell script?
It's built-in and can be used to perform some quite fancy programming/control tasks on a Dreambox. For initial help to get you started try looking at the '.sh' files in the Dreambox 'script' folder (/var/script on my DM7000). View them using a text editor via your ftp program. Do not make any changes to these files, just view them to see the structure of the scripts.
Then use google to learn what the various commands and programs do.
A linux compatible editor is necessary for writing Dreambox shell scripts. Linux shell scripts will not run if written with a windoze editor (notepad etc.) as it produces files with 'cr/lf' line ends and shell scripts must have only 'lf' line ends. As I use an Eee PC with linux o/s, I use the default text editor (kwrite) which is a full linux programmers editor. It gives colour coding and much useful information that helps with correct syntax when writing shell scripts. I also occasionally use 'jEdit' (a free programmers editor) and as it is written in java, it can be run on a windoze system (but doesn't need java on the Dreambox).
Best wishes, John.