Hi
You don't need file serving on the windows machine. Right click on the folder containing the files, choose sharing and then select "shared as..." and give it a name. It is now available over the local network (ie up to the linux machine).

Now on the linux machine try doing "man smbmount" and try to get the shared directory on the windows machine mounted on the linux machine (you probably need to be root).

Also you don't need an ftp server on the linux machine as you can just as easily write a perl script to put the PPT file of your choice onto the remote machine of your choice. You could set it in the crontab to try and upload the file every 30 mins or something like that to your own machine. The only thing this requires is that you have access to the linux machine with ip forwarding...