Unchangeable Black Home Screen[Plz Help!]

[TobiCoyote]

Ok, I know Im a n00b since I just registered for some of you, but please do read my problem. Ok so, I have an 8GB iPod Touch 4G, and it was Jailbroken with the newest Greenpois0n without problem, I added some Tweaks and Mods like: Barrel, SBRotator, Winterboard, Graviboard, Infiniboard, BootLogo, Cydelete, Activator and IconRenamer.
I have downloaded a lot of Themes now searching for one that covers all icons like A UInique Theme does[the Automatic App Store Icons Thingy that it has, I am accepting Theme suggestions] but now after downloading some more Themes, I got a black screen as home screen wallpaper, so I tried to change it in Settings>Wallpaper and it didnt work, any of them, so I tried a different theme, and still nothing, I tried moving the User Wallpaper in Winterboard to the Top and enabling and still nothing, I also searched through SSH for the LockBackground.png to delete it, but it wasnt there, and while I was doing that, I noticed in my images, that the images that come as default in the iPod werent there, and all the images there were black when I opened them, I then tried downloading Wallpapers from Cydia, didnt work, I tried getting an Image from one of those apps with a lot of Wallpapers and nothing, I also tried putting a PNG wallpaper through SSH, but without the Thumbnail it didnt appear, Oh, and the Wallpapers from Cydia didnt even appear, not in Winterboard, not in Wallpapers, not in photos. Also, I am able to change the Lockscreens Wallpaper, but not the Home Screens, it just remains black, AND lastly, only Themes with default wallpapers can have my wallpaper change, but then I cant manually change them, even in those themes, which BTW some of those themes are, Black Chrome 1, Ultimate Nexus One or smthing like that, and Vivid.
Oh and also forgot to say I also tried downloading the User Wallpaper 4.0 in Cydia, and afterwards activating that or the normal User Wallpaper, neither of them worked :/
Please Help.

[TobiCoyote]

Woah, wait a minute, I found out that there is a file named LockBackground.cpitmap in /var/mobile/Library/SpringBoard, and a Thumbnail.jpg of it, and 2 other files named aplicationstate.plist and IconSupportState-7365aebe.plist, does this have to do with anything? I opened the LockBackground and it seems to be my LockScreen wallpaper, shoulde there be another file like this for my HomeScreen wallpaper? Those 4 files are the only ones in that folder, could someone please check this folder on your iDevice and tell me if there should be another one?

[Jcbzr]

Try to remove Winterboard and Graviboard. The tweaks may be causing your problem!

[TobiCoyote]

Thanks I will try, though I doubt that Graviboard was the problem, I already removed it not long ago :/ And I reinstalled WinterBoard Too, but Ill try uninstalling, and then Installing :P Thanks Anyways.