As the Title said... if you want your XP Pro or Home to run and look like a media center than you need the following
Media Center Theme - Download
Media Player Visualizations/Skins/Plugins and more - Download
Plus! MP3 Audio Converter LE
Sample a feature of Plus! for Windows XP and double the amount of music you can store on your computer by converting your MP3 files quickly and easily to Windows Media Audio (WMA). Get Microsoft Plus! to unlock all the great features and take Windows XP to the next level.
PowerToys for Windows Media Player for Windows XP
Includes a dozen new and updated PowerToys for Windows Media Player for Windows XP, designed to give you more control of your music with the MPXP Tray Control, Playlist Import to Excel utility, Media Library Metadata Update Wizard, and much more.
Windows Media Player for Windows XP Visualizations
Experience over a half dozen new Windows Media Player for Windows XP visualizations that move to your music such as MSN Photos picture viewer, Fireplace, Dungeon Siege, and Trilogy.
Windows Media Player Skins
Express yourself and customize Windows Media Player with these new skins including Stars and Stripes, Anime, and the TDK Mixmaster designed by The Skins Factory.
Windows Movie Maker Creativity Kit
Enhance your home videos and unleash your creativity with this huge collection of sound effects, music loops, clips, title videos, and images. Whatever the occasion, there is something here for you! Sounds and Music provided by the major motion picture sound studio, SoundDogs.com, the first and largest online sound effects library.
Sry didn't make a FAQ but the system wouldn't let me. Feel free to PM at any time for the wallpaper