>>5578941hi and welcome,
i've never heard of people using software to organize their wallpapers.
personally i organized them by hand. every time i collected another 50 - 200 walls i would seperate them in my subfolders.
currently i own 2.500+ walls devided into close to 40 different folders.
if you have any other questions, feel free to ask
i will upload my categorized folderlist on request