I haven't dug around on how to get CE to work in LD+ seeing as LD+ has a built in cheating system during character creation. I've opted to use that instead. Though I suspect it's just a matter of googling around a bit if you want to use CE instead.
Just like 1242 said, you don't really need cheat for Lust Doll Plus since at new game, you can boost all stats and credits, enough to plow easily the game... with one hand (iykwim ;) ).