Hi, welcome to LQ,
Ubuntu 9.04 is well past end of live by over 2 years. All support for this distribution is stopped as well. Please upgrade to a newer version of Ubuntu, currently 12.04, supported until April 2017.
As for your problem, apparently, there used to be some hand configured devices on your system. Normally, it is not necessary to manually configure that sort of thing, it is not recommended as well unless you have a good reason to do so. These configurations are written in the /etc/fstab file. You need to correct it to reflect your current hard disks/device configuration. If you understood nothing about what I just said, then it is a really bad idea to even try. Download Ubuntu 12.04, use the live-cd to backup your files, then reinstall Ubuntu using the newer, supported, version.