I've been extensively searching for a Vindictus wallpaper, because my wallpaper is (I am ashamed) MapleStory. I am happy to share quite a few wallpapers with you, though I am too lazy to link them all in this post, I shall give you a link to a download (download is optional) with many Vindictus themes and wallpapers.
It's very nice - though there is no cursor as of yet (yet they say so), it has a wide variety of wallpaper images for Vindictus.
That was the best link I found, and I hope you enjoy these images to prop up the Vindictus spirit!
The Vindictus Guide