Been playin around with nose to edit the blitz 08 teams into the 07 rom.

Have found with 2 teams that when i try to paste one player over another it gives me a message saying that there are "insufficient bytes to paste the selected player data" or something like that.

The only way i can do it is to delete a player from the roster, so the team effectively ends up with 1 player less.

Anyone with more knowledge than me have any ideas?

You have to click this obscure little button on the "Teams" section of NOSE called Auto Bytes. It will then allow you to copy/paste players and NOSE will take care of the rest. I wish it were on by default...I'm not sure why it's not?