How To Solve Problems While Relocating a Package Installation using Prefix

["sjonnalagadda" <sjonnalagadda osi-tech com>]

Hello All,
   I am Using RPM version 4.0.4 on RH7.2.
    
     I have an RPM which has a prefix tag saying 
     prefix : /tmp

      and all the files are installed in /tmp folder so that the relocation   
command will work while using rpm -ivh <<filename.rpm>>  --prefix=/home/ebiz

        But The main problem is one of the files in the installed rpm need to 
have a different ownership permissions.
    i.e., (root root  /tmp/a.html)
          (ebiz ebiz  /tmp/b.html)
          (root root /tmp/c.html)

    If i Use %defattr or chown command to change the permission of the file 
after installation, I need to specify the path of the file which will again 
be dependent on the --prefix option given by the installation user.
 
 If no prefix option is given , simply %defattr can be used.

  Can any one help me..  and get me out of this ignorance, i am basically a 
newbie in this RPM field.

 Regards
 J.S.Murthy
  www.osi-tech.com
  Hyderabad/india