@luky
Yes, I used 2.6.22 from WDLive, but you need many more things to compile vmlinux for Azbox, it goes beyond simple explanation, sorry.

No , no speed improvment on network speed, 3 MB , 3.3 MB max, and main CPU is on full load.So maybe overclocking few Mhz up like acceleration option in Azbox FW will help.