That is basically the concept of virtual desktop size, which gives greater desk space on lower resolutions. Have you reconfigured the settings after uploading the file? The settings which I saw shouldnt give a virtual desktop size at 1024x768.
Regarding the RPM thing, Ubuntu doesn't use RPM's natively, so you would have to convert it to a debian package to use it. Instead, get the tar.gz file from here and follow the instructions.
Regarding the RPM thing, Ubuntu doesn't use RPM's natively, so you would have to convert it to a debian package to use it. Instead, get the tar.gz file from here and follow the instructions.