First, I'm spanish and i'm not speak good English. I use the Google tranlations.
Here are the cheat that I made for GTA CW includes 121 cheat and is inserted into the base of GBAtemp cheat.
I can not cheat in the xml format.
Currently only includes the 121 cheat USRCHEAT.DAT, the update CHEAT.DAT and rioja
Maybe you need to rename the database.
DOWNLOADS:
CHEAT.DAT--->http://www.megaupload.com/?d=FZCBMOU0
USRCHEAT.DAThttp://www.megaupload.com/?d=RMDRTT69
Will soon have EZFLASH V
PROVED IN:
DSTT, FIRMWARE 1.17 VERY GOOD