Output file ownership

[Tom]

In searching my archives I find discussions about permissions but not 
ownership.

Scenario:

 From input processing I create the first file below.

system "echo \"<PRE>\" > /appl/fpmerge/html/" {jobname {".html"

Which results in the file being owned by the user (in this case 14):

-rw-------    1 14       stores         13 May 18 10:13 we052806.html

Then I run rreport, which results in the file below that is owned by 
filepro.

rptstring="/appl/fp/rreport scheddet -f sched -v schedsel -a -ia -u -r" 
<1 <"-rw" <4 <"-rx" <5
rptstring=rptstring <"-h" <"\"" <jobname <"\"" <"-pn nocodes -p 
/appl/fpmerge/html/ " {jobname

-rw-------    1 filepro  stores       4540 May 18 10:13 we052806

Now I cat the output file to the first file and append a tag:

system "cat /appl/fpmerge/html/ " {jobname <">>" <"/appl/fpmerge/html/" 
{jobname {".html"
system "echo \"</PRE>\""  <">> /appl/fpmerge/html/" {jobname {".html"

Finally I ftp the file to different server:

THE PROBLEM is it won't allow the cat of the rreport output file to the 
first file because the ouput file is owned by filepro and the other by 
the user. What should I do here? Thanks in advance.

Tom Aldridge