generally, this is a position where you get a lot of use from your pieces. However, you rarely, if ever, get to this position because the opponent makes moves that you have to react to. Your king is safe, and your pieces attack the squares in the center.
pawns and knights...

I'd say generally speaking you don't want to make more than 3 pawn moves before developing your bishops and knights. You also want to try to keep your knights away from the edges of the board, although every situation is different and sometimes it's warranted.

Your a beginning dont move more then one pawn move in the center. Then develop/get pieces out your knight first then bishops is best into the center also. Have u noticed yet where everything is being played at in the beginning/opening? As The diagram u was shown is the ideal position but if they take a pawn in the center and they usually do u wont get to make that happen, that why i say dont put more then one pawn in the center and foccus on getting out pieces/ army out into the game before attacking anything.

general opening ideas: pawn in the center, knights before bishops ('cause they have less space of manuvering) after casteling and develop all pieces move the queen to connect ur rooks. In the opening the main concern should be to control the center because if u do so then ur opponents army whould be divided in the left and right of the board (of course is hard to control the center because other pple try this too...) to keep all options openbest squares 4 knights c2, f2/ c7, f7
make as many pawn moves as u need-however assure that u dont move the pawns in front of the king after casteling. u may trap the opposing bishops or knights.. check this:

Remember also castle quckly and often to ensure your kings safety and allow the rook into the center sooner....

here is a good tip:
- no more then two centre pawn moves (generally!)
- no more than two uncentre pawn moves (generally!)
- knights should be developed to f3 and c3 and as black f6 and c6(generally!)
i cannot stress the importance of GENERALLY! you must evaluate the position right and not rely on basic GENERAL! principles!

I think this a wonderful website for begginers to learn the basics and early opening ideas. It's divided into lessons so you can skip arround to what you want to learn.
http://www.chesskids.com/lessons04.shtml
There are a lot of principles and generalities to learn and once you understand them they kind of go out the window. Having said that here are some that are good for beginners.
1. Knights before bishops because there's only two places you can put each knight. For this reason it's hard to put them in the "wrong" place.
2. Try not to move a piece twice in the opening unless you have to.
3. Pawns can promote into queens so don't just throw them around. You might wish you still had them later.
4. It's probably best to clear the way for castling as quickly as is comfortable. This isn't true in all positions, but as a beginner it's not a bad idea. (IE move the King pawn, then the kingside knight, then the kingside bishop then castle) You may have to make intermediary moves in order to avoid losing material. You may not be able to do this at all in some openings.
These are just ideas to quickly address the pieces in question. I'm really not an expert and I would recommend only using this advice as long as it seems to improve your game. Others such as littleman are far more versed in theory than I am.
Anthony
As I asked before about the bishops you gave me some pretty good answers... now I really need to ask some questions that bother me. In the beginning moves how many pawns should I move? And where should I move my knights? I try to figure out what the best position would be for me with out getting attacked. I just don't see that they have that much need to keep aorund... Unless i use them for bait...