I'm having the same problem. The .jar, when run from within MO, does not recognize the presence of the Unofficial Skyrim Patch. I've tried the same methods you've described, despite the fact that the Xmx1024M method is designed for some memory issue that causes it to hang or take hours(!). I think I've got USKP version 2.0.8a, if I'm reading this correctly, but whatever it is, it's the latest version on Nexus. Did you ever get the SkyProc patch working? Does anyone know what to do about this patch failing to see the USKP? Update: So, I figured it out, I think. It wasn't that it wasn't detecting USKP. It wasn't detecting it early enough in the plugin order (the list of mods had the right order, but the list of plugins did not), so I ran loot, which moved it back up, which created a conflict in MO's order detector (for some reason), but it worked for getting patchus maximus to work.