i dont realy know how to do it but i have done a few using paint shop pro 7
what i did was open the practice kits in the data\graphics\uniform\practice folder in the cricket 2002 directory you want kit01 for the front of the shirt and kit02 for the back kit03 and 07 are the pants
with kit01 i selected all of the uniform the arms and shirt font with the crop icon (or whatever its called) and made the shirt a grey scale picture so i would have a blank shirt to use and also keeping the folds in the jumper..less work for me... i did this with the back and the pants legs also.....
from there i just experimented......
i found pictures of the teams i wanted to change and there team logos to edit over the ones on the practice shirt....
i hope this helps a little like i said i dont really know how to do it but i did my best trying to explain........