How to get the job atributes from a submitted job?

Hi, I'm having a problem copying a spool file because the program I'm 
running calls another program that actually creates the spool file with a 
different job name.
Basically, my program uses QCMDEXC to call a LAWSON command that submits a 
job creating the spool file.  I've tried *LAST but it says there's no 
spool file for the current job, which is true, so I tried OVRPRTF 
SPLFOWN(*JOB) but then it says there are duplicate jobs found.   I also 
tried the QUSRJOBI api but that doesn't help because you need the 
qualified job name.  Can anyone think of a way to grab the spool file from 
a job within a job?  Thanks!