You can use Popstation to change a game ID on PSP. For a Popstation link and instructions on how to change the ID, check out the related link.
You cannot change your ID on any Pokemon game, let alone Pokemon Diamond. When you buy the game, the ID number is the number you get, you cannot change it.
the games id is on the bottom of the card or on the Internet. :o :) :P
The only way to change your ID is starting a new game.
DS : AW2P-3C47276A PSP :Still unknown.
sorry but the ds and psp are different companies ds is made by Nintendo and psp is made by Sony as u can see clearly on the back of the psp it says Sony and there are different on the way there games are made e.g. nintendos games online are nds roms and psp iso and i think even if u figure a way to convert them id think it would work because the computer language on ds psp and ds are different types of language but u can try ur best.
You need to change your question.
Yes
possibly, at eb games they always have different trade in deals. check there, you may have to give in some games for the store credit (hint hint, new psp in october, id wait till then)
The ID for 3DS (as well as DS) games are located on the front of the game cartridge.
You put the game name on and then put the game Id
yes
Id have to say psp. Its way more loaded with features