If nothing else, you could make the changes yourself and start a new project for each of these games. Consider to give enough information to stipulate which modules those will be based on and link to them, as well as give due credit to the authors.
Both these games are old SPI properties. My involvement with these modules was to upload the work of the late Al Hay, who commissioned the creation of dozens of SPI modules in the days of the Derision Games Vassal Embargo (during which they forbid SPI modules from being hosted online, while they attempted to squeeze a buck from them behind their own firewall). Once Derision saw the light and ended their moronic embargo, a team of us uploaded Al Hay’s large cache of “sneaker net” Vassal modules to the Vassal site. We did not do any authoring or quality control of these modules. And later, when Vassal changed its “project owner” methodology we became “owners” of projects we really had no connection to. Such is the case with La Grande Armee and 1812.
cholmcc is correct that, you’re probably better off making these small changes yourself, creating a new project and taking over as Owner of these projects. Every good Vassal module deserves a “champion”!!! That being said, if I am now listed as the owner of one of these modules, send me a message and at the very least, I can transfer ownership, or add you to the list of contributors so that you can upload corrected versions without having to create a new project.
[later edit, after a bit of investigation] I am listed as the author of the “area” version of 1812, but I am not the owner of the project; so I can’t do anything about this. You’ll have to wait for Chuck S to get a little PTO, I suppose …