but VPmage and VPCS force me to put them inside a folder :S
you need to make a data folder, and make maps, models, etc inside the data folder and put your files there.
They go in "maps", "models", etc. Not "data/maps", "data/models", etc. which the VP structure will let you do but FS won't read.
learn how to use the tool before you give advice, i can tell youve never used VPMage...
If the tool was designed properly, I shouldn't need to know how to use VPMage to answer the question. I know how the VPs themselves work and what structure they actually are composed of, which should be reflected in whatever tool you use. That said, I've gotten something out of place up to now - specifically that data/models and data/maps are in fact correct (the errors I've seen are two nested data folders, which was my assumption here) so I have been misleading up to this point.
However, the correct place for the VP is in the root level of the mod, not mod/data. If that helps any with your problem, ShivanSpS.