FreeBSD Toolkit

[Bernard & Jean Dale]

I recently purchased a "FreeBSD Toolkit" package being a 6cd set of FreeBSD v5.1 but after adjusting my BIOS I cannot get the 1st cd to boot. I do not have this problem with v4.8 cds so thought I'd try  booting with the1st 4.8 cd before immediately switching over to the 1st 5.1 cd. unfortunately 3/4 thr'u the install everything stopped, apparently because the 5.1 kernel is different to that of 4.8. Can you please advise what I can do to get the 5.1 cd to boot. I am a very green elderly newbie.
Bernard Dale.