So basically you just commented out the 2nd part of the join as follows:

left outer join msdb.dbo.sysjobsteps js on j.job_id = js.job_id

--and js.step_id = SUBSTRING( p.program_name, 72, LEN(p.program_name)-72 )

However, it shows many invalid links between job & jobstep...

compare the end of p.program_name ( job: .... step: #) with jobstep_id & you'll see.

Also you could add this in the select statement to see:

job_step_id = SUBSTRING( p.program_name, 72, LEN(p.program_name)-72 )