Hello Octavius.
i have uploaded a new Version (0.6.3a). Please use this
With this you do not need to change the StlyeVar
imgdir_sprite anymore. This should simplify the installation process.
To avoid additional errors, please make sure, that the default vbulletin sprite directory (just look into the StlyeVar
imgdir_sprite to see which is this), is writeable, so this addon can save the sprites in this folder.
Best regards
Sebastian