hi.
can anyone recommend any tuts for this?

Aaargh!
Delete your question as soon as you can and google for:
"code injection" "game training"
(with quotes)

Code injection is a fairly standard technique, whether it's applied to game training or any other form of reverse engineering. If your target isn't packed, you should have little trouble Googling the topic and getting your injection working. If it is packed, you have a mountain to climb first.

ok thanks guys