Ok no worries, thanks.
I came across this:
http://744.hoppie.nl/forum.cgi/noframes/read/11720
I can't vouch for its accuracy - especially as it seems to be the *only* real info out there on the 748 deck, but if that is an "official" picture, by the looks of it it is a 744 upgraded with some 777 features...
Nothing like the 787 flight deck. I assume that is to preserve commonality.
Cheers,
Martin