I already found the solution. Apparently the debian way of compiling a kernel isn't as good as I thought. Everything was configured well in the kernel .config file, but
dpkg -i kernel-image....
didn't do the job.
I did one "normal" or old-school way of compiling the kernel, and everyting worked like a glove. (make dep, make bzImage, make modules,make modules_install)
I don't recommend doing it the debian way, unless I was doing something wrong...(if you think so, please let me know)
Thanks for your reply