I have seen a virgin one somewhere on the internet but it seems to be missing the first few sections like Cockpit prep, engine start etc...
If you are trying to find out how to perform routines such as the preflight set up of the flight deck then you need the detailed
procedures, not just the associated checklists. In our company (and I suspect many others ) routine procedures are done from memory, e.g. cockpit preparation and engine start. They are described in detail in a book called the FCOM 1 ( or "Flying Manual" in old language), based on a Boeing document. The FCOM 1 is usually size of a fairly thick paperback book and just the normal procedures section - the detail of the things you do or consider on every normal flight - takes probably around 50 plus pages to describe....
The
checklists on the other hand are concise enough to fit on a A4 laminated card (still assuming the 744). They are read, as appropriate, on a "challenge and response" basis to confirm the correct configuration of essential systems before and/or after doing something critical such as starting the engines.
So in a nutshell the way it works is you'll do a (possibly lengthy) FCOM 1 procedure from memory and then confirm you've got the essential actions correct by using the checklist.
If you still want the full 744 procedures you need somehow to get a copy of a 744 FCOM 1, but as Intruder has pointed out there are restrictions on employees copying and promulgating these documents.