[Blender 2.67] Minor Help?

*Move this post, if it doesn't necessarily belong here*



Some simple questions, really.



1.) How do I use Save As for copy usage? I'm making poses and I was trying to test and see how I could import the clip, so if I wanted to, change and fix things up. Can I get a step-by-step tutorial, because I watched Kaleeko's vids, but I don't think she really explained on how you'd do that.
2.) Why was my sim model's head black while I was trying to formulate a pose? Did I not properly save a bone joint before moving on to a newer position? Because I had just moved down the eyes before I switched over to their fingers. While I was trying to figure out the model's movements, I scrolled out and noticed that their head was pitched black. I tried undoing the progress I made prior, but it didn't change back to normal, thus, I had to recover my last saved session (which is why I want to know how to save, if I can do this without relying on the "Save As" option, so I can pick off where I left off, that'd be nice too. Either is fine, honestly).

Edit: Just FYI, for saving, I guess I did the action by double-pressing "a", then "i", before I clicked "LocRot", but I still haven't figured out how to re-upload it to Blender.