<cd-rom-drive>/RedHat/instimage/usr/lib/python1.5/site-packages/GTK.py
<cd-rom-drive>/RedHat/instimage/usr/lib/python1.5/site-packages/gtk.py

Both of these files show up in the above mentioned directory.  This is all
right when the CD is being read from Linux, but is terrible if one wants
to install your product from, say, a FAT partition, which, in my
experience, is often the case.  This "duplication" causes only one of
the .py files to be copied to the FAT, which in turn causes the installer
to crash.  This problem was not present in RH 6.0, so, could you please
ensure that it doesn't happen in future versions either ?  It would make
your product that much more convenient and easy-to-use.