well the answer would be what I have already stated before. whatever hacks or mods your using you want to correct any relative urls to files to be full urls so files can be found. I know nothing about any hacks or mods your running so not like I can tell you where to change anything. You would need to find that reference in whatever mod your using and correct that relative url. None of these would be issues with the gallery. Your referencing mod issues and support for mods can be obtained through the mod thread you downloaded the mod from.