WallpaperXe 

Wallpaper Xe is a utility designed to offer you total and complete control over your desktop wallpapers. Features: Active Desktop, 30 Graphics formats, Timer, transparent background for icons text, customizable hotkeys, multilingual. Free download.
wallpaper changer manager utility management utilities

XP Visual Tools 

Finally a complete suite of Windows XP Desktop enhancement, XP Visual Tools is loaded with all you need to tweak your Windows XP Desktop.
transparent xp taskbar transparent start menu xp transparency windows xp skins xp logon screen windows xp themes change xp wallpapers change xp logonui