508 xTEA for 474?

I was wondering if I could add a 508 xTEA keys for a 474 client?, If I could how do I add them to the client? If there's a tutorial on here could you give me the link, I looked for a tutorial but didn't find any.

Thanks in advance.

i really dont think you could :S because of updated graphics so i think they woulld of changed all if not most xtea keys and also you dont add xtea to client you add it to the source

oh ok, but then how do i add it to the source. This is my first time messing with xTEA keys. Im going to try and if i can't ill just try to find a 474 xTEA keys.

In order for 508 TEA keys to work, you would need to load 508 landscape maps and 508 objects.

ok how do i do that? I really haven't ever touched xTEAs keys or landscapes or object to make a xTEA to work