the new bios has been encrypted because it contains some X3 code in it. XbTools shouldnt be able to support the bios changing, due to the encryption. Teamxecuter has talked to NghtShd and he is seeing if he can make the relevant patches - if he cant then teamxecuter will try to make something for it.
Everyone, please remember that teamX is hard at work developing for the X3, and the new X3 bios will include REAL TIME bios editing , in other words, you wont ever have to unpack a bios, or use XBTool. All of this is BUILT IN and is being done in REAL time. This is the main accomplishment of the X3 bios and is why development has been taking longer then expected. All the spare time is going into developing the X3 bios.
For now, if you want to modify the bios, just stick with 4981 or one of the older bioses, which Xbtool supports.
Thanks,
Jive