Now that I got it working I can start with the bug report. Screen resolution seems to be for the C-series, so the rxvt terminal, for instance is partly off-screen. The keyboard is not working right. Letters work but some things I noticed were wrong are: . (dot), delete and backspace (neither works), / and a few others. I guess this is due to the differences between the C-series and the 5*00-series keyboards, although the virtual keyboard didn't work right either.
On the positive side, I managed to run a few of my own programs and some of the included ones as well. Left and right clicks work fine and the screen responds as expected.
Felipe