The best place to get a demo version of Minecraft is from their website. Once you've tried out the game and decide to purchase it you can pay for the full version and download it to your computer. It is a very popular game.
The same place as the original PC version of Minecraft - the bottom of the map.
right kilk
right mouse click
at the computer paying minecraft
Minecraftnet is the only place where you can register the premium account that you need to play the full version of Minecraft.
wait for night or dont place down torches
You can. Your computer is wrong.
To place a block on the PC edition of Minecraft, simply right-click on the top, bottom, or sides of another block in which you'd like to place the block you're holding on.
Yes, there is a place to play mine craft other than your own computer. I believe it is being release on XBOX LIVE arcade for download.
Make a crafting bench\table using 4 pieces of woodplanks, place it in the world, and right click on it to get a 3x3 board. There you can place different objects in a way to get a tool. You can find crafting recepies on minecraft wikis.
The default button is Q. If you have mods installed, the default button for dropping objects can conflict with a command pre-set in the mod. You can change the controls in the game options. Many people prefer "drop object" to be assigned to the upper arrow key.