I'm an FSF member and got my membership card not long ago. I used it to load up my laptop, replacing Ubuntu Intrepid. In any case, I wanted to get Virtual Box OSE running on it but ran into a scag. I couldn't find kernel headers with which to compile the module. Well it looks like I may have just found it here:
Next time I get some free time, maybe over the weekend, I'll see if the kernel headers package from there works for me.