The first thing is to make sure that Command Support is enabled in Boot Image.
Press f8 when you get an error on Task Sequence.
The second thing is that you have to access the smsts.log file from x:\windows\temp\smstslog\smsts.log
Copy the file to a network location
Example: net use s: \\fileserver\share /user:domain\username password
Copy smsts.log to s:
Delete network Drive – net use s: /delete
Open the file using cmtrace.exe