CompuSec help?

We have some very clever people in here so i might as well ask if they can help.
I have done a really stupid thing on my Laptop, I was setting up the full CompuSec free edition program and mixed up/forgotten the user Id and Password for the boot screen, what’s more the emergency diskette I made wont read
Thus rendering the hard disk drive and/or the laptop un-bootable and the hdd inaccessible etc.
I can't even boot to another remote drive/partition from what I can make out, I may have to get another Hdd and set up an OS to try and recover this drive somehow.
I have a sinking feeling i just ruined a Hdd, I have contacted the software co' but at this time of year I don't expect a reply for some time.
I have a ghost backup of the o/s drive so all is not lost.
How can I work around this please?
I have done a really stupid thing on my Laptop, I was setting up the full CompuSec free edition program and mixed up/forgotten the user Id and Password for the boot screen, what’s more the emergency diskette I made wont read

Thus rendering the hard disk drive and/or the laptop un-bootable and the hdd inaccessible etc.
I can't even boot to another remote drive/partition from what I can make out, I may have to get another Hdd and set up an OS to try and recover this drive somehow.
I have a sinking feeling i just ruined a Hdd, I have contacted the software co' but at this time of year I don't expect a reply for some time.
I have a ghost backup of the o/s drive so all is not lost.
How can I work around this please?