I am just doing this for fun so please don't give me some super long code to put in a terminal. I will post a picture once I get enough rep.
To install Xubuntu, first you need to download the 32bit for your machine. Once downloaded, you can either burn to DVD using Imgburn, or create a bootable USB using Unetbootin depending on what your machine can handle. Once that is done, set the boot priority in the BIOS to boot from Either the DVD or USB. Once booted, follow the screens below.
Click on Install Xubuntu. If you want to see if everything is OK, before installing choose Try Xubuntu
Your option might say something like replace Windows 98, if not just choose erase Disk and Install