About the Forms:
since I submitted a Simplified application Form , on Aug 21, 2008, (and it has only One Form), and I submitted it to Islamabad embassy which is than automatically redirected to synney (as of online status). so now they are talking about complete application Form , which I believe you people already submitted to sydney, and again have to submit in visa office. (background form, immigration form , family inforomation IMM0008 etc, I dont know the exact names).
please note that after Novemeber 2008, Simplified process is no longer valid so please don't confuse confuse with it.
About experience certificate:
The document explicitly mention original certificate, so I believe we should submit original one. experience certificate does not mean employment contract, but experience letter we got from our employer time to time. according to letter I received, it also mentions that experience letter should clearly mention your job responsibilities with respect to given NOC.