I have used creation centre to make up 20 of my own teams.but the problem is they all have the same stadium.i know u cant change the stadiums in creation centre,and was told to use access editor to change the default stadium.i have opened the dev_all_data file with access 2000 in creation centre but cant find my made up teams in the data to change tha stadiums.is there any way to get my package file with my made up teams into the dev_all_data file so that i can change which stadiums they play in.

No. You have to make all the changes again in the dev_all_data.mdb file.