The windows binary downloads consist of a zip file, which contains a directory 
with setup.exe, readmes, etc., and a whole bunch of f_ files with compressed 
data.  I think this could be very confusing for less experianced users - they 
would simply see the f_ files, and not realise that the setup program is at the 
end of the listing.  I suspect many would simply assume that the download was 
corrupted.  I can think of three ways to improve this - I don't know which would 
be easiest for you.  One would be to call the f_ files x_ instead, so that 
setup.exe comes earlier in the listing.  Alternatively, the f_files could be put 
in a subdirectory, which would make the main directory neater.  Finally, it 
would be neatest to have all the f_ files combined within a single file (perhaps 
a zip or a tarball) - that would probably involve most changes to the installer.

I don't know whether this is an issue with the distributions for other systems - 
on gentoo linux I just write "emerge openoffice", and with knoppix I use 
apt-get, so I don't need to see the details of the linux tarballs.