kraxel kernels, apt and other stuff that has to be upgraded

I know some ut (mkinitrd for example) have to be updated to make a 2.6.X kernel working. Is kraxel work included in the apt repository? I wasn't able to find any 2.6 kernel using apt-cache search. I noticed apt proposed mkinitrd as an update anyway. I'm still having a lot of errors trying to use a Linus 2.6.3 stock kernel (mainly a lot of can't find the module....). I did run generate-modprobe.conf with no success, I haven't been able to obtain a 2.6.3 working kernel even if I started from a working 2.4.24 .config (make oldconfig) and then checked the config with a make menuconfig. any advice?