War,
I've had some troubles with the 0000007B errorcodes, and they usualy were IDE/SCSI controller related. Could it be you had to delete the atapi.sys while installing the 2162 build? It's just a hint, but it might solve your bootup probs.
In the past I have solved this with the following:
http://support.microsoft.com/default.aspx?scid=kb;en-us;314082
Hope you solve it,
Cheers
Cacti