Achievement points are completely and utterly useless. You never were and most likely never will be able to use your achievement points for anything. The only way to obtain Microsoft Points is by paying for them or entering a redeem code.
Firstly, look at the games you want to get achievements for. After, look at what needs to be done to get the achievement. Then just spend several hours trying to get all the achievements on that game.
depends on the game you want to get the achievements for. I suggest looking here first: http://www.brighthub.com/video-games/console/tags/xbox+360+achievements.aspx
Here is a list of "Games for Windows Live" that you can play on PC using your Xbox Live Gamertag and get achievements
http://www.xbox360achievements.org/games/pc/
It does it by it self if you have Xbox Live.
By playing through them in progression and beating them
u get alot of achievements
Nba 2k11 does have awards (achievements...). There are many achievements you can get.
Nope
Xbox360 Arcade only comes with out of the box with internal memory. There is no hard drive. If you want to transfer profile data and achievements you need to have a xboxlive account on the original xbox and recover the profile on the new elite. If you have purchased a hard drive for the arcade you can still transfer the data to the elite. Here is a helpful link: http://vgstrategies.about.com/od/xbox360faqs/a/Xbox360EliteTra.htm
all you have to do is complete the set of requirements given by the game. the achievements are only available on the xbox360
no you cant.
yes
No you can not
Jck ff
You can't! You can only stream them
No.
The Xbox 360 does not recognize achievements nor have achievements for halo 2 for the xbox, halo 2 for the PC is different. Halo 2 on the PC has achievements and you CAN see them from your xbox if your searching his achievements. sorry