AHHHHH ohmigosh it worked. Thank you very much Motoki and varmint!

I created him really fast, moved him in a lot close to my sim I wanted to change the looks of, invited him over to my sims house, switched active household.. opened up console, typed the bodysnatch "simname" and boom, done!

I'm so happy.  Thanks again. <3

@Motoki, hmm ok... so, does the sim I make have to be made inside the household, or can it be a visitor? And what's the command to do so?

@Elsie, I switched the command to Disabled and I see what you're talking about, now it only lets me choose from custom made Sims, but the 6 little headed sim icon I am seeking for in CAS when you select it for a pre-existing sim is still missing.. think I'm gonna have to do the bodyswitch thing..

Thanks to both of you for repsonding to me so quickly too. 

ok... so i've been searching for a while and can't seem to find any subjects on this.. i'm wondering, if i load a sim up into CAS with Awesome Mod, is there any way to choose a sim from the sim bin? or no? cause i'm not seeing the icon to do so anywhere, which really sucks.... i ended up changing my sim slightly different but not while playing the game, it was in the new create a family section, i didn't actively change him...