Hi,
@Zubaz: I know it's a beta, I've just exaggerated a little, therefore, I'm here again.
After saving all my skins, icons, gadgets etc., I've uninstalled everything: WindoBlinds, DesktopX, IconPackager, even SDCentral etc. After that, rebooted, and then, used RegEdit to clean up all traces left behind by Wise (not so wise) uninstaller

After that, I've launched ZTreeWin and deleted all directories that the (not so) Wise uninstaller missed.
Now, after reinstalling SDCentral and WindowBlinds, everything is working fine. WindowBlinds is not asking for a boot after boot anymore. But what I've asked before, if possible, and I think it is, is to offer us users the option to decide if we want the WB skins we install available "just for me" or for "all users". A lot of installation programs do that, why WB cannot do the same? Someone said it's a feature required for Vista but I'm on XP. Whatever, can it be done?
Thank you for your attention - Roberto Gadelha