Always when i download any aircraft n install in fsx, it would have just the body only without the virtual cockpit n sound also.. where can i get full package for MAS aircraft a330 or b777 with virtual cockpit n sound in it??

you probably downloaded the AI version of those aircrafts.. in which the publisher/designer never include sound and panel packages...

for flyable version you need to purchase the full package (payware) from the developer/publisher or designer website or purchase online from simmarket.. or get the freeware version from most of major FS site

for A330.. get the product from Wilco Publishing or CLS (Commercial Level Simulations) establishments..
and B777 from PSS (Phoenix Simulation Software)

Bro emmo,could u pls guide me on the way of getting good airliner(MAS etc) for my SP2 version FSX?I mean with best satisfaction.Currently I only have MAS B734 (9M-MMA) packaged with my B737 Pilot In Command.The realism of the aircraft is just nice,yet where and how else should i do to get another version of aircraft like this?Do i have to book and buy for it?There was none i found in the store instead of the "Pilot in Command" add on.Thanks heap.

you can try these paywares for FSX

Wilco PIC 737---mas 734
Wilco PIC 777---mas 772
Wilco A380---mas a380
Ariane Designs 737NG X2---mas 738
PMDG 747X---mas 744/mascargo 744f
MD 11X---mascargo md11f
CLS 747---mas 742
SMS Overland Boeing---mas738/744/772